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Windows 7: My experience goes from bad to worse! Product Key Not VALID?

19 Sep 2016   #1

Windows 7 Ultimate x64 SP1
My experience goes from bad to worse! Product Key Not VALID?


Anyone who has had input on my other recent threads regarding random crashing will know the hell I have been going through.

I've now followed some advice to do yet another reinstall. I had probably done 3 or 4 before I joined this forum and I was loathed to do another. Anywhere, I did and formatted the drive using DISKPART and...

It states my product key is not valid. This is a Windows 7 Home Premium Upgrade key I am talking about.

Question is now what? I've re-entered it twice just to make sure characters were not wrong!

My System SpecsSystem Spec
19 Sep 2016   #2

Windows 7 Ultimate x64 SP1


Used slgmr /rearm after editing registry.

Thank you!
My System SpecsSystem Spec
19 Sep 2016   #3

Windows 7 Professional 64-bit

I want to learn from you! What was the registry edit just before User slgmr /rearm? Thanks! I'm keeping the steps on my hard-drive.
My System SpecsSystem Spec

19 Sep 2016   #4

Windows 7 Ultimate x64 SP1

Just what I found on there somewhere. Can't find it now but I created my own batch file rather than downloading.

Text editor:
REG ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Setup\OOBE /V MediaBootInstall /T REG_DWORD /D 0 /F

slmgr /rearm

Save as .bat file to Desktop and run as Administrator via Right Click.

Found it!

Option 3 here:-

Clean Install with a Upgrade Windows 7 Version

Note that this May not have solved my overall problem which is random crashing. I have now performed clean install for 4/5 time but this time ensured 100Mb System Reserved partition was not created. But take note you may need that partition if you want to use BitLocker!
My System SpecsSystem Spec

 My experience goes from bad to worse! Product Key Not VALID?

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