You're in Operating Systems

Need a Personal Shopper?

Subscribe to
Bizrate emails for the hottest
deals & products
,
PLUS a chance to

WIN $25

sign me up!

New winners chosen weekly.
No purchase necessary.

Microsoft Windows 7 Ultimate Upgrade

Microsoft Windows 7 Ultimate Upgrade

Microsoft Windows 7 Ultimate is the most versatile and powerful edition of Windows 7.

at Tek-Micro.com

Microsoft Windows 7 Ultimate Upgrade

Microsoft Windows 7 Ultimate Upgrade

Offers everything Home Premium and Professional offers plus added security features and the flexibility to work in multiple languagesSoftware Sub Type: ClientHelp prevent theft or loss of data Use BitLocker and BitLocker To Go to better protect your... ... more

Microsoft Windows 7 Ultimate Upgrade

Offers everything Home Premium and Professional offers plus added security features and the flexibility to work in multiple languagesSoftware Sub Type: ClientHelp prevent theft or loss of data Use BitLocker and BitLocker To Go to better protect your...

Amazon Marketplace

$288.99

FREE shipping

go to store
Microsoft Windows v.8.0 Pro - Upgrade License - 1 PC

Microsoft Windows v.8.0 Pro - Upgrade License - 1 PC

Windows has been reimagined to focus on your life ... more

Microsoft Windows v.8.0 Pro - Upgrade License - 1 PC

Windows has been reimagined to focus on your life

(1,000+)

$87.99

FREE shipping

go to store
(1,000+)
Microsoft Windows 2003 Terminal Services Services 5 Device CALs

Microsoft Windows 2003 Terminal Services Services 5 Device CALs

Microsoft Windows 2003 Terminal Services Services 5 Device CALs ; R19-00848 ... more

Microsoft Windows 2003 Terminal Services Services 5 Device CALs

Microsoft Windows 2003 Terminal Services Services 5 Device CALs ; R19-00848

$379.99

FREE shipping

go to store
Microsoft Windows 2008 Terminal Services Services 20 Device CALs

Microsoft Windows 2008 Terminal Services Services 20 Device CALs

Microsoft Windows 2008 Terminal Services Services 20 Device CALs ; TJA-00035 ... more

Microsoft Windows 2008 Terminal Services Services 20 Device CALs

Microsoft Windows 2008 Terminal Services Services 20 Device CALs ; TJA-00035

$1,519.96

FREE shipping

go to store
Microsoft Windows 8 Pro

Microsoft Windows 8 Pro

Windows has been reimagined to focus on your life ... more

Microsoft Windows 8 Pro

Windows has been reimagined to focus on your life

(1,000+)

$87.99

FREE shipping

go to store
(1,000+)
Microsoft Windows 7 Ultimate,sku Glc-00182,sealed Retail Box,full,32-bit,64-bit

Microsoft Windows 7 Ultimate,sku Glc-00182,sealed Retail Box,full,32-bit,64-bit

This is a brand new, factory sealed package of Microsoft Windows 7 Ultimate with both 32-bit and 64-bit versions. It is the full retail version--NOT Academic, OEM, Not For Resale, Trial, Promotional, or Upgrade. This is exactly what you would buy in... ... more

Microsoft Windows 7 Ultimate,sku Glc-00182,sealed Retail Box,full,32-bit,64-bit

This is a brand new, factory sealed package of Microsoft Windows 7 Ultimate with both 32-bit and 64-bit versions. It is the full retail version--NOT Academic, OEM, Not For Resale, Trial, Promotional, or Upgrade. This is exactly what you would buy in...

eBay

$450.00

FREE shipping

go to store
Microsoft Windows 7 Home Premium Upgrade Family Pack 3 Pcs 32 64 Bit Sealed

Microsoft Windows 7 Home Premium Upgrade Family Pack 3 Pcs 32 64 Bit Sealed

NEW Microsoft Windows 7 Home Premium Upgrade Family Pack 3 PCs 32/64 Bit Sealed new sealed box from smoke free and pet free home upgrade 3 PCs has 3 license keys If you have any questions please email me before bidding as all sales are final. Returns... ... more

Microsoft Windows 7 Home Premium Upgrade Family Pack 3 Pcs 32 64 Bit Sealed

NEW Microsoft Windows 7 Home Premium Upgrade Family Pack 3 PCs 32/64 Bit Sealed new sealed box from smoke free and pet free home upgrade 3 PCs has 3 license keys If you have any questions please email me before bidding as all sales are final. Returns...

eBay

$299.99

FREE shipping

go to store
Microsoft Windows Professional 8.1 Full Version 32/64-bit Edition (PC)

Microsoft Windows Professional 8.1 Full Version 32/64-bit Edition (PC)

Microsoft Windows Professional 8.1 Full Version 32/64-bit Edition gives you the power to quickly browse, watch movies, play games, polish your resume and pull together a killer presentation all on a single PC. Multitasking just got a whole lot easier... ... more

Microsoft Windows Professional 8.1 Full Version 32/64-bit Edition (PC)

Microsoft Windows Professional 8.1 Full Version 32/64-bit Edition gives you the power to quickly browse, watch movies, play games, polish your resume and pull together a killer presentation all on a single PC. Multitasking just got a whole lot easier...

Walmart.com

$199.99 $174.99

FREE shipping

go to store
Microsoft Corporation Ob Win Svr Datacenter 2012R2 Nl 2P Qual

Microsoft Corporation Ob Win Svr Datacenter 2012R2 Nl 2P Qual

At the heart of the Microsoft Cloud OS vision, Windows Server 2012 R2 brings Microsoft's experience delivering global-scale cloud services into your infrastructure. Windows Server 2012 R2 offers exciting features and enhancements across virtualization,... ... more

Microsoft Corporation Ob Win Svr Datacenter 2012R2 Nl 2P Qual

At the heart of the Microsoft Cloud OS vision, Windows Server 2012 R2 brings Microsoft's experience delivering global-scale cloud services into your infrastructure. Windows Server 2012 R2 offers exciting features and enhancements across virtualization,...

(1,000,000+)

$6,304.95

FREE shipping

go to store
(1,000,000+)
Microsoft Corporation Charity Olp Sngl Lang Win Sbs Prem Add On Cal Ste 2011 User Cal

Microsoft Corporation Charity Olp Sngl Lang Win Sbs Prem Add On Cal Ste 2011 User Cal

Designed and priced for small businesses, the Windows Small Business Server 2011 (SBS 2011) solution suite offers agile, all-in-one, secure server solutions that can help increase margin per unit, create cross-sell opportunities, and drive service... ... more

Microsoft Corporation Charity Olp Sngl Lang Win Sbs Prem Add On Cal Ste 2011 User Cal

Designed and priced for small businesses, the Windows Small Business Server 2011 (SBS 2011) solution suite offers agile, all-in-one, secure server solutions that can help increase margin per unit, create cross-sell opportunities, and drive service...

(1,000,000+)

$20.99

FREE shipping

go to store
(1,000,000+)
Microsoft Windows 7 Anytime Upgrade [Home Premium to Ultimate] (Old Version)

Microsoft Windows 7 Anytime Upgrade [Home Premium to Ultimate] (Old Version)

Windows 7 Ultimate gives you everything Home Premium and Professional offers – plus added security features and the flexibility to work in multiple languages. Create a home network and share all of your favorite photos, videos and music. You can even... ... more

Microsoft Windows 7 Anytime Upgrade [Home Premium to Ultimate] (Old Version)

Windows 7 Ultimate gives you everything Home Premium and Professional offers – plus added security features and the flexibility to work in multiple languages. Create a home network and share all of your favorite photos, videos and music. You can even...

Amazon Marketplace

$299.99

FREE shipping

go to store
Microsoft Windows 7 Ultimate SP1 32-bit OEM DVD - 1-Pack (New Packaging)

Microsoft Windows 7 Ultimate SP1 32-bit OEM DVD - 1-Pack (New Packaging)

Microsoft Software GLC-02377 Windows 7 Ultimate 1Pack Looking for your product key? The product key is a 25-digit string with a hyphen between each 5 digits. It will say "Product Key" before 25 digits or have an image of a key next to 10 digits with... ... more

Microsoft Windows 7 Ultimate SP1 32-bit OEM DVD - 1-Pack (New Packaging)

Microsoft Software GLC-02377 Windows 7 Ultimate 1Pack Looking for your product key? The product key is a 25-digit string with a hyphen between each 5 digits. It will say "Product Key" before 25 digits or have an image of a key next to 10 digits with...

Amazon.com

$189.99

FREE shipping

go to store
Windows 7 Ultimate SP1 64bit (Full) System Builder OEM DVD 1 Pack (New Packaging)

Windows 7 Ultimate SP1 64bit (Full) System Builder OEM DVD 1 Pack (New Packaging)

Microsoft Windows 7 Ultimate SP1 64-bit (1-Pack) Looking for your product key? The product key is a 25-digit string with a hyphen between each 5 digits. It will say "Product Key" before 25 digits or have an image of a key next to 10 digits with the... ... more

Windows 7 Ultimate SP1 64bit (Full) System Builder OEM DVD 1 Pack (New Packaging)

Microsoft Windows 7 Ultimate SP1 64-bit (1-Pack) Looking for your product key? The product key is a 25-digit string with a hyphen between each 5 digits. It will say "Product Key" before 25 digits or have an image of a key next to 10 digits with the...

Amazon.com

$180.54

FREE shipping

go to store
Microsoft Windows Server 2003 20 Device CALs Only OLP/SA

Microsoft Windows Server 2003 20 Device CALs Only OLP/SA

Microsoft Windows Server 2003 20 Device CALs Only OLP/SA ; R18-00910 ... more

Microsoft Windows Server 2003 20 Device CALs Only OLP/SA

Microsoft Windows Server 2003 20 Device CALs Only OLP/SA ; R18-00910

$349.99

FREE shipping

go to store
Microsoft Windows Server 2008 R2 Enterprise 64-Bit with 10 Clients

Microsoft Windows Server 2008 R2 Enterprise 64-Bit with 10 Clients

Microsoft Windows Server 2008 R2 Enterprise 64-Bit with 10 Clients ; P72-03988 ... more

Microsoft Windows Server 2008 R2 Enterprise 64-Bit with 10 Clients

Microsoft Windows Server 2008 R2 Enterprise 64-Bit with 10 Clients ; P72-03988

$988.99

FREE shipping

go to store
Microsoft Windows Server 2003 Standard R2 SP2 64-Bit with 5 Clients

Microsoft Windows Server 2003 Standard R2 SP2 64-Bit with 5 Clients

Microsoft Windows Server 2003 Standard R2 SP2 64-Bit with 5 Clients ; P73-02497 ... more

Microsoft Windows Server 2003 Standard R2 SP2 64-Bit with 5 Clients

Microsoft Windows Server 2003 Standard R2 SP2 64-Bit with 5 Clients ; P73-02497

$875.99

FREE shipping

go to store
Microsoft Windows 2008 Remote Desktop Services 5 User CALs

Microsoft Windows 2008 Remote Desktop Services 5 User CALs

Microsoft Windows 2008 Remote Desktop Services 5 User CALs ; 6VC-00024 ... more

Microsoft Windows 2008 Remote Desktop Services 5 User CALs

Microsoft Windows 2008 Remote Desktop Services 5 User CALs ; 6VC-00024

$389.99

FREE shipping

go to store
Microsoft Windows 2008 Terminal Services Services 5 User CALs

Microsoft Windows 2008 Terminal Services Services 5 User CALs

Microsoft Windows 2008 Terminal Services Services 5 User CALs ; TJA-00124 ... more

Microsoft Windows 2008 Terminal Services Services 5 User CALs

Microsoft Windows 2008 Terminal Services Services 5 User CALs ; TJA-00124

$389.99

FREE shipping

go to store
Microsoft Windows Server 2003 5 User CALs Only OLP/SA

Microsoft Windows Server 2003 5 User CALs Only OLP/SA

Microsoft Windows Server 2003 5 User CALs Only OLP/SA ; R18-00907 ... more

Microsoft Windows Server 2003 5 User CALs Only OLP/SA

Microsoft Windows Server 2003 5 User CALs Only OLP/SA ; R18-00907

$94.99

FREE shipping

go to store
Microsoft Windows Server 2008 R2 Enterprise 64-Bit with 25 Clients

Microsoft Windows Server 2008 R2 Enterprise 64-Bit with 25 Clients

Microsoft Windows Server 2008 R2 Enterprise 64-Bit with 25 Clients ; P72-03827 ... more

Microsoft Windows Server 2008 R2 Enterprise 64-Bit with 25 Clients

Microsoft Windows Server 2008 R2 Enterprise 64-Bit with 25 Clients ; P72-03827

$1,499.99

FREE shipping

go to store
Microsoft Windows Server 2008 R2 Standard x64 Bit with 5 CALs

Microsoft Windows Server 2008 R2 Standard x64 Bit with 5 CALs

Microsoft Windows Server 2008 R2 Standard x64 Bit with 5 CALs ; P73-04754 ... more

Microsoft Windows Server 2008 R2 Standard x64 Bit with 5 CALs

Microsoft Windows Server 2008 R2 Standard x64 Bit with 5 CALs ; P73-04754

$499.99

FREE shipping

go to store
Microsoft Windows Server 2003 Enterprise R2 SP2 w/25 Clients

Microsoft Windows Server 2003 Enterprise R2 SP2 w/25 Clients

Microsoft Windows Server 2003 Enterprise R2 SP2 w/25 Clients ; P72-02365 ... more

Microsoft Windows Server 2003 Enterprise R2 SP2 w/25 Clients

Microsoft Windows Server 2003 Enterprise R2 SP2 w/25 Clients ; P72-02365

$1,994.99

FREE shipping

go to store
Microsoft Windows Server 2008 Enterprise SP2 64-Bit with 25 Clients

Microsoft Windows Server 2008 Enterprise SP2 64-Bit with 25 Clients

Microsoft Windows Server 2008 Enterprise SP2 64-Bit with 25 Clients ; P72-03737 ... more

Microsoft Windows Server 2008 Enterprise SP2 64-Bit with 25 Clients

Microsoft Windows Server 2008 Enterprise SP2 64-Bit with 25 Clients ; P72-03737

$1,099.99

FREE shipping

go to store
Microsoft Windows Server 2012 Standard x64 Bit with 5 CALs

Microsoft Windows Server 2012 Standard x64 Bit with 5 CALs

Microsoft Windows Server 2012 Standard x64 Bit with 5 CALs ; P73-05760 and R18-00145 ... more

Microsoft Windows Server 2012 Standard x64 Bit with 5 CALs

Microsoft Windows Server 2012 Standard x64 Bit with 5 CALs ; P73-05760 and R18-00145

$699.99

FREE shipping

go to store
Microsoft Windows XP Professional with SP1

Microsoft Windows XP Professional with SP1

Microsoft Windows XP Professional with SP1 ; E85-01011 ... more

Microsoft Windows XP Professional with SP1

Microsoft Windows XP Professional with SP1 ; E85-01011

buy OEM

$99.99

FREE shipping

go to store
Microsoft Windows 2008 Terminal Services Services 20 User CALs

Microsoft Windows 2008 Terminal Services Services 20 User CALs

Microsoft Windows 2008 Terminal Services Services 20 User CALs ; TJA-00032 ... more

Microsoft Windows 2008 Terminal Services Services 20 User CALs

Microsoft Windows 2008 Terminal Services Services 20 User CALs ; TJA-00032

$1,559.96

FREE shipping

go to store
Microsoft Windows 2008 Terminal Services Services 5 Device CALs

Microsoft Windows 2008 Terminal Services Services 5 Device CALs

Microsoft Windows 2008 Terminal Services Services 5 Device CALs ; TJA-00036 ... more

Microsoft Windows 2008 Terminal Services Services 5 Device CALs

Microsoft Windows 2008 Terminal Services Services 5 Device CALs ; TJA-00036

$379.99

FREE shipping

go to store
Microsoft Windows Server 2008 R2 Standard x64 Bit w/5 CALs

Microsoft Windows Server 2008 R2 Standard x64 Bit w/5 CALs

Microsoft Windows Server 2008 R2 Standard x64 Bit w/5 CALs ; P73-04849 ... more

Microsoft Windows Server 2008 R2 Standard x64 Bit w/5 CALs

Microsoft Windows Server 2008 R2 Standard x64 Bit w/5 CALs ; P73-04849

buy OEM

$447.99

FREE shipping

go to store
Microsoft Windows Server 2008 Standard SP2 with 5 CALs

Microsoft Windows Server 2008 Standard SP2 with 5 CALs

Microsoft Windows Server 2008 Standard SP2 with 5 CALs ; P73-04712 ... more

Microsoft Windows Server 2008 Standard SP2 with 5 CALs

Microsoft Windows Server 2008 Standard SP2 with 5 CALs ; P73-04712

$579.99

FREE shipping

go to store
Microsoft Windows Server 2008 Standard with 5 CALs

Microsoft Windows Server 2008 Standard with 5 CALs

Microsoft Windows Server 2008 Standard with 5 CALs ; P73-03883 ... more

Microsoft Windows Server 2008 Standard with 5 CALs

Microsoft Windows Server 2008 Standard with 5 CALs ; P73-03883

$579.99

FREE shipping

go to store
Microsoft Windows Server 2008 R2 Enterprise 64-Bit SP1 w/25 Clients

Microsoft Windows Server 2008 R2 Enterprise 64-Bit SP1 w/25 Clients

Microsoft Windows Server 2008 R2 Enterprise 64-Bit SP1 w/25 Clients ; P72-04458 ... more

Microsoft Windows Server 2008 R2 Enterprise 64-Bit SP1 w/25 Clients

Microsoft Windows Server 2008 R2 Enterprise 64-Bit SP1 w/25 Clients ; P72-04458

$1,499.99

FREE shipping

go to store
Microsoft Windows Server 2003 Enterprise R2 SP2 with 25 Clients

Microsoft Windows Server 2003 Enterprise R2 SP2 with 25 Clients

Microsoft Windows Server 2003 Enterprise R2 SP2 with 25 Clients ; P72-02506 ... more

Microsoft Windows Server 2003 Enterprise R2 SP2 with 25 Clients

Microsoft Windows Server 2003 Enterprise R2 SP2 with 25 Clients ; P72-02506

$1,299.99

FREE shipping

go to store
Microsoft Windows Server 2008 Standard with 5 Clients

Microsoft Windows Server 2008 Standard with 5 Clients

Microsoft Windows Server 2008 Standard with 5 Clients ; P73-04001 ... more

Microsoft Windows Server 2008 Standard with 5 Clients

Microsoft Windows Server 2008 Standard with 5 Clients ; P73-04001

$579.99

FREE shipping

go to store
Microsoft Windows 2003 Terminal Services Services 20 User CALs

Microsoft Windows 2003 Terminal Services Services 20 User CALs

Microsoft Windows 2003 Terminal Services Services 20 User CALs ; R19-00847 ... more

Microsoft Windows 2003 Terminal Services Services 20 User CALs

Microsoft Windows 2003 Terminal Services Services 20 User CALs ; R19-00847

$1,559.96

FREE shipping

go to store
Microsoft Windows 2008 Remote Desktop Services 5 Device CALs

Microsoft Windows 2008 Remote Desktop Services 5 Device CALs

Microsoft Windows 2008 Remote Desktop Services 5 Device CALs ; 6VC-00083 ... more

Microsoft Windows 2008 Remote Desktop Services 5 Device CALs

Microsoft Windows 2008 Remote Desktop Services 5 Device CALs ; 6VC-00083

$379.99

FREE shipping

go to store
Microsoft Windows Server 2008 20 Device CALs Only

Microsoft Windows Server 2008 20 Device CALs Only

Microsoft Windows Server 2008 20 Device CALs Only ; R18-02454 ... more

Microsoft Windows Server 2008 20 Device CALs Only

Microsoft Windows Server 2008 20 Device CALs Only ; R18-02454

$379.96

FREE shipping

go to store
Microsoft Windows Server 2008 R2 Enterprise 64-Bit w/25 Clients

Microsoft Windows Server 2008 R2 Enterprise 64-Bit w/25 Clients

Microsoft Windows Server 2008 R2 Enterprise 64-Bit w/25 Clients ; P72-03977 ... more

Microsoft Windows Server 2008 R2 Enterprise 64-Bit w/25 Clients

Microsoft Windows Server 2008 R2 Enterprise 64-Bit w/25 Clients ; P72-03977

$1,499.99

FREE shipping

go to store
Microsoft Windows Server 2008 R2 Standard x64 Bit SP1 with 5 CALs

Microsoft Windows Server 2008 R2 Standard x64 Bit SP1 with 5 CALs

Microsoft Windows Server 2008 R2 Standard x64 Bit SP1 with 5 CALs ; P73-05128 ... more

Microsoft Windows Server 2008 R2 Standard x64 Bit SP1 with 5 CALs

Microsoft Windows Server 2008 R2 Standard x64 Bit SP1 with 5 CALs ; P73-05128

buy OEM

$499.99

FREE shipping

go to store
Microsoft Windows Server 2012 Standard x64 Bit w/5 CALs

Microsoft Windows Server 2012 Standard x64 Bit w/5 CALs

Microsoft Windows Server 2012 Standard x64 Bit w/5 CALs ; P73-05328 ... more

Microsoft Windows Server 2012 Standard x64 Bit w/5 CALs

Microsoft Windows Server 2012 Standard x64 Bit w/5 CALs ; P73-05328

$599.99

FREE shipping

go to store
Microsoft Windows Small Business Server 2008 Premium Edition 5 Add-on User CALs

Microsoft Windows Small Business Server 2008 Premium Edition 5 Add-on User CALs

Microsoft Windows Small Business Server 2008 Premium Edition 5 Add-on User CALs ; 6VA-00105 ... more

Microsoft Windows Small Business Server 2008 Premium Edition 5 Add-on User CALs

Microsoft Windows Small Business Server 2008 Premium Edition 5 Add-on User CALs ; 6VA-00105

$638.97

FREE shipping

go to store
Show
Hide
Hide