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Hot deals on Operating Systems

1 - 25 products displayed out of 83
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  Microsoft Windows 7 Professional OEM Licence and Media LCP SP1 64-bit Microsoft Windows 7 Professional OEM Licence and Media LCP SP1 64-bit
Mfr#: FQC-08289
  • In stock
In stock £114.07  
  Microsoft Windows 7 Home Premium OEM DSP OEI LCP Service Pack 1 64bit Microsoft Windows 7 Home Premium OEM DSP OEI LCP Service Pack 1 64bit
Mfr#: GFC-02733
  • In stock
In stock £69.99  
  Microsoft Windows 8.1 - 64bit - 1pk - OEM - DVD Microsoft Windows 8.1 - 64bit - 1pk - OEM - DVD
Mfr#: WN7-00614
Your Windows Experience Across All Your Devices!
  • In stock
In stock £76.50  
  Microsoft Windows 7 Ultimate OEM DSP OEI LCP Service Pack 1 64-bit Microsoft Windows 7 Ultimate OEM DSP OEI LCP Service Pack 1 64-bit
Mfr#: GLC-02389
  • While stocks last
While stocks last £141.74  
  Microsoft Windows Pro 8.1 - 64bit - 1pk - OEM - DVD Microsoft Windows Pro 8.1 - 64bit - 1pk - OEM - DVD
Mfr#: FQC-06949
Your Windows Experience Across All Your Devices!
  • In stock
In stock £109.99  
  Microsoft Windows 7 Profesional OEM DSP OEI LCP Service Pack 1 32-bit Microsoft Windows 7 Profesional OEM DSP OEI LCP Service Pack 1 32-bit
Mfr#: FQC-08279
  • In stock
In stock £112.06  
  Microsoft Windows 7 Profesional OEM Service Pack 1 32/64-bit Medialess Microsoft Windows 7 Profesional OEM Service Pack 1 32/64-bit Medialess
Mfr#: FQC-08250
  • In stock
In stock £114.63  
  Microsoft Windows 8.1 - 32bit - 1pk - OEM - DVD Microsoft Windows 8.1 - 32bit - 1pk - OEM - DVD
Mfr#: WN7-00658
Your Windows Experience Across All Your Devices!
  • In stock
In stock £72.99  
  Microsoft Windows 8.1 - Complete package - 1 PC - DVD - 32/64-bit - English International Microsoft Windows 8.1 - Complete package - 1 PC - DVD - 32/64-bit - English International
Mfr#: wn7-00580
Your Windows Experience Across All Your Devices!
1.0*
  • In stock
In stock £84.92  
  Microsoft Windows Server 2012 Standard Microsoft Windows Server 2012 Standard
Mfr#: P73-05328
  • In stock
  • Free delivery available
In stock £535.66  
  Microsoft Windows 8.1 Pro Complete Package 1 PC DVD 32/64-bit - English International Microsoft Windows 8.1 Pro Complete Package 1 PC DVD 32/64-bit - English International
Mfr#: FQC-06914
Your Windows Experience Across All Your Devices!
  • In stock
  • Free delivery available
In stock £154.99  
  Microsoft Windows Small Business Server 2011 CAL Suite - Licence - 5 User CALs Microsoft Windows Small Business Server 2011 CAL Suite - Licence - 5 User CALs
Mfr#: 6UA-03599
  • In stock
  • Free delivery available
In stock £205.83  
  HP Microsoft Windows Small Business Server 2011 Standard - Licence - 5 Users CALs - Multilingual HP Microsoft Windows Small Business Server 2011 Standard - Licence - 5 Users CALs - Multilingual
Mfr#: 644265-B21
  • In stock
  • Free delivery available
In stock £176.84  
  Microsoft Windows Server Essentials 2012 64Bit English 1pk DVD 1-2 CPU Microsoft Windows Server Essentials 2012 64Bit English 1pk DVD 1-2 CPU
Mfr#: G3S-00123
  • In stock
  • Free delivery available
In stock £305.48  
  Fujitsu ROK Windows Server 2012 5-User CAL Fujitsu ROK Windows Server 2012 5-User CAL
Mfr#: S26361-F2567-L465
  • In stock
In stock £117.28  
  Microsoft Windows Server 2012 Standard Additional License Microsoft Windows Server 2012 Standard Additional License
Mfr#: P73-05347
  • In stock
  • Free delivery available
In stock £538.98  
  Fujitsu Microsoft Windows Server Foundation 2012 ROK Fujitsu Microsoft Windows Server Foundation 2012 ROK
Mfr#: S26361-F2567-D440
  • In stock
  • Free delivery available
In stock £153.19  
  Microsoft Microsoft  Win 8.1 to Pro 8.1 32-bit/64-bit Product Upgrade Microsoft Microsoft Win 8.1 to Pro 8.1 32-bit/64-bit Product Upgrade
Mfr#: 5VR-00140
Your Windows Experience Across All Your Devices!
  • In stock
In stock £85.16  
  Microsoft Windows 7 Professional w/SP1 - Licence - 1 PC - OEM Registered Refurber Program - (3 Pack) Microsoft Windows 7 Professional w/SP1 - Licence - 1 PC - OEM Registered Refurber Program - (3 Pack)
Mfr#: QLF-00311
  • In stock
In stock £117.25  
  Microsoft OEM Windows Server Standard 2012 R2 x64 English 1pk DVD Microsoft OEM Windows Server Standard 2012 R2 x64 English 1pk DVD
Mfr#: P73-06165
  • In stock
  • Free delivery available
In stock £537.31  
  Microsoft Windows Small Business Server Essentials 2012 R2 Microsoft Windows Small Business Server Essentials 2012 R2
Mfr#: G3S-00716
  • In stock
  • Free delivery available
In stock £288.97  
  HP Microsoft Windows Server 2012 R2 Standard Reseller Option Kit HP Microsoft Windows Server 2012 R2 Standard Reseller Option Kit
Mfr#: 748921-B21
  • In stock
  • Free delivery available
In stock £486.69  
  Microsoft Windows Pro 8.1  -32bit - 1pk - OEM - DVD Microsoft Windows Pro 8.1 -32bit - 1pk - OEM - DVD
Mfr#: FQC-06987
Your Windows Experience Across All Your Devices!
  • In stock
In stock £109.99  
  Microsoft OEM Windows Server Standard 2008 Microsoft OEM Windows Server Standard 2008
Mfr#: P73-06451
  • In stock
  • Free delivery available
In stock £517.04  
  Microsoft Windows 7 Home Premium OEM DSP OEI LCP Service Pack 1 32bit Microsoft Windows 7 Home Premium OEM DSP OEI LCP Service Pack 1 32bit
Mfr#: GFC-02726
  • In stock
  • Free delivery available
In stock £69.58  
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An efficient operating system is the backbone of your IT set-up. Keep your machine performing at its best with the latest systems from dabs.com.

A slow running computer can be incredibly frustrating, update your operating system and keep your machine running smoothly with dabs.com. Windows 8 is an ideal home operating system; you can entertain with Xbox, connect with friends and family on Skype and work with the full power of Microsoft Office. Or if you’re looking for a business operating system, Windows Small Business Server is designed especially for SME’s. The feature-packed server technology includes daily back-ups to protect against data loss, remote access, plus file and printer sharing.