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Windows 7: accidental windows upgrade


06 Nov 2011   #1

windows 7 home
 
 
accidental windows upgrade

My nephew accidentally upgraded my windows 7 home premium to windows ultimate. A pirated one of course. I would like to revert the system to my legal version. Please let me know how could do this without re installing the OS.


My System SpecsSystem Spec
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06 Nov 2011   #2
Microsoft MVP

Windows 7 Ultimate X64 SP1
 
 

Welcome to Seven Forums.

I'm sorry but you'll have to do a clean install. Even a legal copy of Ultimate only has downgrade rights to downgrade to Vista or XP.
My System SpecsSystem Spec
06 Nov 2011   #3

Win 7
 
 

Accidentally? I wish I had such powers.
If I did, I'd "accidentally" become rich and famous.
My System SpecsSystem Spec
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06 Nov 2011   #4
Microsoft MVP

 

There is a workaround to change to a lesser version using an in-place Upgrade or Repair Install. However you need to find out how the bootleg was activated because if it has a BIOS modification cracktivation then it will need to have the HD wiped to be rid of it with certainty. SSD - HDD Optimize for Windows Reinstallation

If this is a factory preinstall then you can possibly run the Recovery partition to recover to Factory condition, or boot the Recovery disks which you made when setting up the computer or order from Tech Support.

Absent these choices you'll need to find a Windows 7 installation DVD for your version, or unlock all versions in any Windows 7 installer to reinstall your licensed version with the key on COA sticker. Follow these steps to clean reinstall Windows 7: Reinstalling Windows 7
My System SpecsSystem Spec
07 Nov 2011   #5

MS Windows 7 Ultimate 64-bit SP1
 
 

Has he upgraded with a pirated windows 7 ultimate DVD or used the Windows Anytime Upgrade with a pirated key?
My System SpecsSystem Spec
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 accidental windows upgrade




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