20 Best Window Companies in Cloverleaf, TX (2024 Reviews)

Thinking of improving your property’s insulation? The top window replacement companies can help.

We analyzed all the top-rated window companies in Cloverleaf and selected the best 20 based on:

  • Customer reviews
  • Window installation expertise
  • Popularity with home-owners like you
EcoWatch Local Advisors

By EcoWatch Local Advisors

Updated April 21, 2024

Why you can trust EcoWatch

Our panel of energy experts work tirelessly to create unbiased reviews and informative content to help homeowners make educated decisions. No other windows site has covered energy efficiency and sustainability as long as EcoWatch, which means we're going to help you find windows replacements that will save on your energy bill and put more money back in your wallet.

A guide on the top window replacement companies in Cloverleaf may not seem like the most riveting article on EcoWatch, but trust us, windows impact your life more than you might think. Potential leaks or drafts from your windows can make your home uncomfortable in the summer or winter.

Replacement windows improve your home’s insulation, not only making you more comfortable during the summer and winter, but also saving you money and helping the environment.

Efficient windows are especially important in Cloverleaf, where summers are long and hot. According to Energy Star, making the switch to energy-efficient windows can save the average homeowner up to $337 a year.

Best Availability

Renewal by Andersen

★★★★★
4.5
  • Great industry reputation
  • Member of US Green Building Council
  • Manufactures products in-house
Buy One Window, Get One 40% OFF
Get Estimate

Best Energy-Efficient Features

Champion

★★★★★
4.5
  • Many years of experience
  • Low prices relative to competitors
  • Limetime warranty
Buy 2 Windows, Get 2 Free
Get Estimate

Power Home

★★★★★
4.5
  • Uses eco-friendly materials
  • Well-trained, certified installers
  • Lifetime or lengthy warranty
Next-Day Appointments Available
Get Estimate

Best Window Installation & Replacement Companies in Cloverleaf

The EcoWatch team researched dozens of window installation companies in Cloverleaf to find the best ones for our readers. The providers in this article scored the best in our review categories, such as energy-efficient offerings, local expertise, availability, price, customer service and more.

Window World logo
FAST QUOTE
as little as 30 seconds
Best Affordability

Window World

★★★★★
BBB Rating: A+
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon EnergyStar Partner
  • Pros icon Large serice area
  • Pros icon Low prices relative to competitors
  • Pros icon Great industry reputation
  • Pros icon Lifetime warranty
Cons:
  • Pros icon Quality of service will depend on your area

Window World provides windows expertise in Cloverleaf. This company has 27 years of experience in the windows business, and it has become one of the best companies in the business. Its reputation is backed by all the positive reviews from customers online.

It is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital.

Energy Efficiency of Window World Windows

Window World is an Energy Star partner and offers a variety of energy-efficient windows that are Energy Star certified. Note that not all of the company’s windows are Energy Star certified, so make sure to mention that you want energy-efficient windows to your Window World representative when inquiring about services.

How much does Window World cost in Cloverleaf?

Window World does not detail prices on its website, but it's known for offering some of the most affordable window installations around. Receiving a free quote on its website is the best way to know for sure.

Renewal by Andersen logo
FAST QUOTE
as little as 30 seconds
Best Overall

Renewal by Andersen

★★★★★
BBB Rating: A
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon Great industry reputation
  • Pros icon Award-winning company
  • Pros icon Member of US Green Building Council
  • Pros icon Manufactures products in-house
Cons:
  • Pros icon No lifetime warranty
  • Pros icon More expensive than competition

Renewal by Andersen provides the best availability in Cloverleaf. This company has 27 years of experience in the windows business, and it has become one of the best companies in the business. Its reputation is backed by all the positive reviews from customers online.

It uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started.

Energy Efficiency of Renewal by Andersen Windows

Renewal by Andersen is an Energy Star partner and offers a variety of energy-efficient windows that are Energy Star certified. Note that not all of the company’s windows are Energy Star certified, so make sure to mention that you want energy-efficient windows to your Andersen representative when inquiring about services.

How much does Renewal by Andersen cost in Cloverleaf?

Andersen does not detail prices on its website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. Receiving a free quote on its website is the best way to know for sure.

Universal Windows Direct logo
FAST QUOTE
as little as 30 seconds
Best Warranty

Universal Windows Direct

★★★★★
BBB Rating: A
Locations: Nationwide
Founded: 2002
Pros:
  • Pros icon Makes charitable contributions
  • Pros icon Manufactures products in-house
  • Pros icon Wide variety of products and services
  • Pros icon Lifetime warranty
Cons:
  • Pros icon Limited service area
  • Pros icon Some installations carried out by third-party contractors
  • Pros icon Quality of service will depend on your area

Universal Windows Direct provides the best warranty in Cloverleaf. This company has 20 years of experience in the windows business, and it has become one of the best companies in the business. Its reputation is backed by all the positive reviews from customers online.

It has an industry-leading warranty covering products, parts and workmanship for life.

Energy Efficiency of Universal Windows Direct Windows

Universal Windows Direct is an Energy Star partner and offers a variety of energy-efficient windows that are Energy Star certified. Note that not all of the company’s windows are Energy Star certified, so make sure to mention that you want energy-efficient windows to your Universal representative when inquiring about services.

How much does Universal Windows Direct cost in Cloverleaf?

Universal does not detail prices on its website, but installations typically range from $225 to $425 per window based on customer feedback. That makes Universal Windows Direct more of a budget-friendly option for window repair and replacements. Receiving a free quote on its website is the best way to know for sure.

Texas Window Store logo
FAST QUOTE
as little as 30 seconds
Great Local Choice

Texas Window Store

★★★★★
BBB Rating: A+
Locations: Texas-Specific
Founded: 2018
Pros:
  • Pros icon Low prices relative to competitors
  • Pros icon Low number of customer complaints
  • Pros icon Wide variety of products and services
  • Pros icon Limited service area
Cons:
  • Pros icon Young company

Texas Window Store provides the best local installation in Cloverleaf. This company has 4 years of experience in the windows business, and it has become one of the best companies in the business. Its reputation is backed by all the positive reviews from customers online.

It has dedicated customer service and can carry out an installation in a timely manner.

Energy Efficiency of Texas Window Store Windows

Texas Window Store is an Energy Star partner and offers a variety of energy-efficient windows that are Energy Star certified. Note that not all of the company’s windows are Energy Star certified, so make sure to mention that you want energy-efficient windows to your Texas Window Store representative when inquiring about services.

How much does Texas Window Store cost in Cloverleaf?

Texas Window Store does not detail prices on its website, but it pitches your project to a group of window manufacturers, and says window costs are typically based on five factors: size, type, material, geographical region and dealer/reseller. Receiving a free quote on its website is the best way to know for sure.

Window Nation logo
FAST QUOTE
as little as 30 seconds
Best for Residential Windows

Window Nation

★★★★★
BBB Rating: A
Locations: Regional
Founded: 2006
Pros:
  • Pros icon Award-winning company
  • Pros icon Manufactures products in-house
  • Pros icon Custom designs
  • Pros icon Wide variety of products and services
Cons:
  • Pros icon Installation not covered by warranty
  • Pros icon Limited service area

Window Nation provides the best residential windows in Cloverleaf. This company has 16 years of experience in the windows business, and it has become one of the best companies in the business. Its reputation is backed by all the positive reviews from customers online.

It gives customers the opportunity to view products and to speak to a representative in person in its showrooms.

Energy Efficiency of Window Nation Windows

Window Nation is an Energy Star partner and offers a variety of energy-efficient windows that are Energy Star certified. Note that not all of the company’s windows are Energy Star certified, so make sure to mention that you want energy-efficient windows to your Window Nation representative when inquiring about services.

How much does Window Nation cost in Cloverleaf?

Window Nation does not detail prices on its website, but based on customer feedback, you can expect to pay between $300 and $525 per window installed, making it a more affordable option compared to competitors. Receiving a free quote on its website is the best way to know for sure.

We strive to remain unbiased and transparent by listing pros and cons for every provider. Additionally, any partnerships do not affect our rankings.

More Window Companies in Cloverleaf

Renewal by Andersen

Tomball, TX
4.5
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Skylights
  • Service icon Glass Doors
  • Service icon Double-Hung
  • Service icon Window Replacement/Installation
  • Service icon Bay Windows
  • Service icon Mirrors

Website: https://www.renewalbyandersen.com/window-company/731-houston-tx/retailer
Address: 9825 Farm to Market 2920, Tomball, TX 77375
Phone: (281) 378-6000

Champion Forest Exteriors, Inc.

Houston, TX
3.0
★★★★★
  • Pros icon Free assessment

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Window Replacement/Installation
  • Service icon Vinyl Frames

Website: https://championforest.com/
Address: 13900 Schroeder Rd, Houston, TX 77070
Phone: (281) 444-7003

Window World of Houston

Houston, TX
4.6
★★★★★
  • Pros icon Educational Website
  • Pros icon Timely Service
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Storm/Impact Windows
  • Service icon Bay Windows
  • Service icon Window Replacement/Installation
  • Service icon Energy-Efficient Options
  • Service icon Glass Doors
  • Service icon Custom Window Designs
  • Service icon Double-Hung

Website: https://www.windowworldhouston.com/
Address: 10540 Bissonnet St Suite 190, Houston, TX 77099
Phone: (713) 439-1172

DaBella

Spring, TX
  • Pros icon Good Customer Service
  • Pros icon Timely Service

Services Offered

  • Service icon Double-Hung
  • Service icon Window Replacement/Installation
  • Service icon Vinyl Frames
  • Service icon Glass Doors

Website: https://dabella.us/location/houston/
Address: 24900 Pitkin Rd #110, Spring, TX 77386
Phone: (281) 524-4835

Carpenter Glass and Mirror

La Porte, TX
5.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Glass Repair
  • Service icon Window Replacement/Installation
  • Service icon Window Repair
  • Service icon Glass Showers
  • Service icon Mirrors

Website: http://www.cgmhouston.com/
Address: 1318 Underwood Rd #104, La Porte, TX 77571
Phone: (281) 254-6730

Advanced Window Products

Pasadena, TX
4.8
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Vinyl Frames
  • Service icon Energy-Efficient Options
  • Service icon Storm/Impact Windows
  • Service icon Glass Doors
  • Service icon Window Replacement/Installation

Website: https://www.awpwindows.com/
Address: 5041 Spencer Hwy Suite 704, Pasadena, TX 77505
Phone: (281) 487-6333

Accent Windows

Pasadena, TX
4.8
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Skylights
  • Service icon Window Replacement/Installation

Website: http://accentwindowstx.com/
Address: 3305 Preston Ave, Pasadena, TX 77505
Phone: (281) 991-6101

Johnson Glass & Mirror

Pasadena, TX
4.1
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Glass Showers
  • Service icon Custom Window Designs
  • Service icon Metal Frames
  • Service icon Mirrors
  • Service icon Energy-Efficient Options

Website: http://www.johnsonglassandmirror.com/
Address: 3618 Fairmont Pkwy, Pasadena, TX 77504
Phone: (281) 487-6464

Joey's Glass Baytown

Baytown, TX
4.5
★★★★★
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Energy-Efficient Options
  • Service icon Glass Repair
  • Service icon Window Repair
  • Service icon Glass Showers
  • Service icon Glass Doors
  • Service icon Mirrors
  • Service icon Tempered Glass

Website: https://joeysglassbaytown.com/
Address: 3011 N Main St, Baytown, TX 77521
Phone: (281) 427-4705

Storm Tight Windows of Texas

Houston, TX
4.4
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Double-Hung
  • Service icon Custom Window Designs
  • Service icon Energy-Efficient Options
  • Service icon Vinyl Frames
  • Service icon Bay Windows
  • Service icon Window Replacement/Installation
  • Service icon Storm/Impact Windows
  • Service icon Glass Doors

Website: https://www.stormtightwindowstexas.com/
Address: 11004 Bay Commerce Dr, Houston, TX 77034
Phone: (281) 426-0084

Apex Energy Solutions - Window Replacement & Entry Doors

Houston, TX
4.9
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Window Replacement/Installation

Website: https://www.apexenergygroup.com/
Address: 1411 Yale St, Houston, TX 77008
Phone: (713) 955-8691

Houston Window Experts

Houston, TX
4.9
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Timely Service
  • Pros icon Educational Website
  • Pros icon Free assessment

Services Offered

  • Service icon Wood Frames
  • Service icon Glass Doors
  • Service icon Window Replacement/Installation
  • Service icon Metal Frames
  • Service icon Vinyl Frames

Website: https://houstonwindowexperts.com/
Address: 467 W 38th St, Houston, TX 77018
Phone: (713) 547-4311

Master Remodelers, LLC

Pearland, TX
4.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Timely Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Double-Hung
  • Service icon Window Replacement/Installation
  • Service icon Glass Doors
  • Service icon Triple Pane Glass
  • Service icon Wood Frames

Website: https://masterremodelerstx.com/
Address: 2235 Camden Arbor Trl, Pearland, TX 77089
Phone: (713) 705-9583

Max Home, LLC

Houston, TX
4.6
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Double-Hung
  • Service icon Bay Windows
  • Service icon Storm/Impact Windows
  • Service icon Window Replacement/Installation
  • Service icon Energy-Efficient Options
  • Service icon Glass Showers

Website: https://www.maxhomenow.com/locations/houston/
Address: 9001 Knight Rd, Houston, TX 77054
Phone: (281) 768-4128

Renaissance Windows and Doors

Houston, TX
4.8
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

  • Service icon Bay Windows
  • Service icon Double-Hung
  • Service icon Energy-Efficient Options
  • Service icon Window Replacement/Installation
  • Service icon Custom Window Designs
  • Service icon Storm/Impact Windows
  • Service icon Glass Doors

Website: https://www.renaissancewindowsanddoors.com/window-replacement-houston-tx/
Address: 7026 Old Katy Rd Suite 158, Houston, TX 77024
Phone: (713) 863-9988

Mainline Glass

Friendswood, TX
4.9
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Window Repair
  • Service icon Custom Glass
  • Service icon Glass Repair
  • Service icon Energy-Efficient Options
  • Service icon Mirrors

Website: http://www.friendswoodglass.com/
Address: 3366 FM 528 Rd Ste B, Friendswood, TX 77546
Phone: (832) 892-0211

Glass Doctor of Houston

Houston, TX
4.7
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Mirrors
  • Service icon Window Repair
  • Service icon Window Replacement/Installation
  • Service icon Glass Repair
  • Service icon Custom Glass
  • Service icon Tempered Glass
  • Service icon Energy-Efficient Options
  • Service icon Glass Showers

Website: https://glassdoctor.com/houston
Address: 4400 W 12th St, Houston, TX 77055
Phone: (713) 496-3200

The Glass Man

South Houston, TX
2.7
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Custom Glass
  • Service icon Glass Repair
  • Service icon Glass Showers
  • Service icon Glass Doors

Website: https://www.theglassmanhouston.com/
Address: 1315 Iowa St Suite B, South Houston, TX 77587
Phone: (713) 943-7449

Classic Glass Block

Deer Park, TX
2.7
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Timely Service

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Glass Showers

Website: http://classicglassblocktexas.com/
Address: 2664 Center St, Deer Park, TX 77536
Phone: (713) 944-9716

Glass Doctor Home + Business of Greater South Houston

Pearland, TX
5.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Mirrors
  • Service icon Custom Glass
  • Service icon Window Replacement/Installation
  • Service icon Glass Repair
  • Service icon Energy-Efficient Options
  • Service icon Glass Doors
  • Service icon Glass Showers
  • Service icon Window Repair

Website: https://glassdoctor.com/gshouston-home-business
Address: 2817 Miller Ranch Rd Ste. 349, Pearland, TX 77584
Phone: (346) 576-7626
Cloverleaf Window Cost Calculator

Calculate how much you can expect to pay for window installation and replacement in Cloverleaf, TX using our customized window cost calculator.

Estimated Window Cost:
161 homeowners have requested a free estimate in the last 3 days.

Estimates will vary based on window dimensions and other unique factors to your home. Getting in touch with a local window installer is the best way to get an accurate cost estimate for your home.

How Installing Energy-Efficient Windows in Cloverleaf Saves You Money

Switching to energy-efficient windows can improve the comfort of your home and help you save on power bills. Here are more details about how upgrading your windows could help you:

  • Protect your valuables from fading: When you switch to energy-efficient windows that have low-emissivity coatings, your floors, carpets and furniture will be protected from fading because of their ability to filter out damaging UV rays.
  • Save money on power bills: According to the Department of Energy, heat gained or lost through windows makes up about 25-30% of residential energy use. Upgrading to energy-efficient models can help decrease that number, therefore saving you about 12% more on your bills.
  • Decrease your carbon footprint: By using less energy once upgrading to Energy Star certified windows, you’ll also be cutting your carbon dioxide emissions by about 12%, according to Energy Star.
  • Protect your investment: If you have a relatively old home, your windows are most likely outdated. Upgrading your windows can make your home more comfortable and also help increase the value of your property if you decide to sell.

Estimated Cost of Window Replacement in Cloverleaf

Each window installation company offers various services and has different prices depending on several factors.

How Much Do New Windows Cost?

Typically, Cloverleaf homeowners can expect their window replacements to range from $250 to $1,200. The average cost sits at about $600. These amounts vary based on specific characteristics of your installation, such as size, material, the location of your home, number of windows, type and more.

It’s also worth bearing in mind that energy-efficient windows will typically cost more upfront, but Energy Star estimates that upgrading the windows on your Cloverleaf home translates to an average energy savings of $236 to $319 a year for single-pane window replacement, or between $87 to $126 per year for double-pane windows. How much you’ll save by switching to energy-efficient windows varies based on your local climate, energy rates and other factors unique to your home.

We advise getting free quotes from several window installation companies to find the right windows and the company that works best for you.

What Services do Window Installers Offer?

When it comes to window installations, in general there are two kinds that your installer will offer: full-frame and pocket installations.

Full-frame installations are usually done when you want to change the style of your windows or your window has a lot of rot. With this service, your installers will replace the total window, including the trim, frame and sill. Pocket installations (also known as retrofits) are when you replace a window while leaving the old frame. Pocket installations are simpler and will be less expensive, but you can’t do this type of installment if you have any pre-existing rot or water damage.

Your window installation company will be able to advise you on the best type for your project. In Cloverleaf, the choice will mostly depend on how much damage there is currently and how old your existing frames are.

Best Availability

Renewal by Andersen

★★★★★
4.5
  • Great industry reputation
  • Member of US Green Building Council
  • Manufactures products in-house
Buy One Window, Get One 40% OFF
Get Estimate

Best Energy-Efficient Features

Champion

★★★★★
4.5
  • Many years of experience
  • Low prices relative to competitors
  • Limetime warranty
Buy 2 Windows, Get 2 Free
Get Estimate

Power Home

★★★★★
4.5
  • Uses eco-friendly materials
  • Well-trained, certified installers
  • Lifetime or lengthy warranty
Next-Day Appointments Available
Get Estimate

How We Choose the Best Window Installers in Cloverleaf

EcoWatch reviews differ from most reviews, as we look at these companies through a sustainability lens. We’ve reviewed the best window replacement companies in Cloverleaf mainly based on energy efficiency, as the most sustainable option also benefits homeowners in many ways. Energy Star certified windows have been shown to cut your power bills by hundreds of dollars. Along with energy efficiency, our rating methodology is based on the following factors:

Service Area

This one is pretty self-explanatory, but we’ve chosen to highlight window installation companies that serve Cloverleaf so you can find the right window installation company near you.

Work Quality

When picking new windows, the quality and breadth of services often plays just as important of a role in insulation and performance as the brand you get. We do rate window installers higher if they offer high-quality products, but we also factor in workmanship as reflected in customer feedback.

Customer Reviews

Customer feedback is another super important review factor. If most customers don’t have good things to say about their service from a certain window installation company, it won’t be featured on EcoWatch.

Cost

This one is a give-and-take: as with other services, cheap window installation companies may not provide the highest quality service. Still, we want to ensure we’re highlighting companies that provide a spectrum of price and financing options so they’re accessible to most homeowners.

Warranty

Protecting your investment in new windows is important to many homeowners. For that reason, window installation companies that give you lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.

Years of Experience

Because of Cloverleaf’s climate, homeowners will want to mitigate low efficiency, water damage and rot. We factored in local experience to reflect the ability of Cloverleaf window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.

Cloverleaf, TX Window Replacement FAQs

What is the typical cost to install new windows?

The average cost to replace a single window ranges from $450 to $650. There are a variety of factors that influence the price, which include the materials used in designing the windows, your property’s location, styles and sizes of windows, the number of windows, how energy-efficient the windows are and local labor costs.

What are the most common types of replacement windows?

There are various types of windows you can get for your house, such as double-hung and single-hung windows, transom windows, bay windows, awning windows, casement windows, slider windows and picture windows.

What do window installation companies do?

Window installers go to your house to remove your old windows and replace them with new ones. Some providers install products sold by other companies, whereas others install their own windows. The installer will also clean up after the installation is finished.

When is it time to replace your windows?

Windows typically have a lifespan of about 20 to 30 years, but anytime you see damage on your windows, it’s a good idea to have an expert take a look at them to determine if they are in need of a repair or replacement.

How long does it take to install windows?

Each window takes around 30 minutes to install depending on the type of window. However, the window installation can take two days or more if you need to have a lot of windows installed.