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Windows 7: Update KB2726535(x64), Error 0x80070490

20 Jan 2013   #21

Windows 7 Professional 64Bit

Hello tom982,

thanks for offering your help. It is an MSDN(AA)-license - dunno if that means OEM or retail- and I would be able to get a new license for free. So i am willing to trust you anyway. A MGADiag should not be needed, i suppose?

My System SpecsSystem Spec
20 Jan 2013   #22

Microsoft Community Contributor Award Recipient

Win 7 x64 Home Premium (and x86 VirtualBox VM)/Win10

MSDNAA licences for Windows could be either MAK or Retail - but not OEM.
Please ensure that you have run Belarc Advisor to retrieve your Key(s) for safe-keeping just in case everything goes wrong!
My System SpecsSystem Spec
20 Jan 2013   #23

Microsoft Community Contributor Award Recipient

Windows 8.1 Pro x64

If it's a MSDNAA license, then I think it's best if you do a repair install:

Repair Install

The hive that I would be editing will contain your product key, and it's best to keep that safe.

My System SpecsSystem Spec

21 Jan 2013   #24

Windows 7 Professional 64Bit

Okay, I will do a repair install.

Nevertheless thanks to both of you for trying to help me.
My System SpecsSystem Spec
21 Jan 2013   #25

Microsoft Community Contributor Award Recipient

Win 7 x64 Home Premium (and x86 VirtualBox VM)/Win10

Good luck!

Don't forget to back up to external media first, in case things go wrong.
My System SpecsSystem Spec

 Update KB2726535(x64), Error 0x80070490

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