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Windows 7: Changing OS!

31 May 2013   #1
barsim

Microsoft Windows 7 Professional 64-bit 7601 Multiprocessor Free Service Pack 1
 
 
Changing OS!

Hi,
  • Questions of mine relate to a situation where the PC's HHD has been viped and the previous OS ie. was Vista with a COA supplied, can I install a new OS, ie. Win 7 full version or of its OEM version will suffice?
  • Will I be limited to 32bit or 64bit by the previous OS?
Thank you
barsim


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31 May 2013   #2
TwoCables

 

You won't be limited because the hard drive has been formatted and therefore will appear to be completely empty to Windows (that is, from Windows' perspective). Therefore, you can install whatever you want.
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01 Jun 2013   #3
barsim

Microsoft Windows 7 Professional 64-bit 7601 Multiprocessor Free Service Pack 1
 
 

Quote   Quote: Originally Posted by TwoCables View Post
You won't be limited because the hard drive has been formatted and therefore will appear to be completely empty to Windows (that is, from Windows' perspective). Therefore, you can install whatever you want.
Let me see if I understand it correctly; even if the previous OS was Vista in the case of example I mentioned Win 7 x 64 OEM could be installed, couldn't it?
My System SpecsSystem Spec
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01 Jun 2013   #4
theog

Microsoft Community Contributor Award Recipient

ME/XP/Vista/Win7
 
 

you can install Vista or Windows 7 x32.
For x64 of both, do you have x64 hardware?
My System SpecsSystem Spec
01 Jun 2013   #5
gregrocker

 

If you had Vista on the PC or a retail copy that you don't plan to use again, then it qualifies to use Win7 Upgrade version. If there's no OS on the HD for the installer to see when booting to do install leave the key blank then after install do the quick registry workaround in Option 3 of Clean Install with a Upgrade Windows 7 Version to activate Upgrade version on a wiped or clean HD.

Always boot the Win7 installer to do the install, delete all partitions to create and format new as shown in step 7 of Clean Install Windows 7
My System SpecsSystem Spec
01 Jun 2013   #6
TwoCables

 

Quote   Quote: Originally Posted by barsim View Post
Quote   Quote: Originally Posted by TwoCables View Post
You won't be limited because the hard drive has been formatted and therefore will appear to be completely empty to Windows (that is, from Windows' perspective). Therefore, you can install whatever you want.
Let me see if I understand it correctly; even if the previous OS was Vista in the case of example I mentioned Win 7 x 64 OEM could be installed, couldn't it?
Yes, because the hard drive is blank (from an OS's perspective). The reason I worded it that way is formatting a drive doesn't actually touch the data, but an OS will think that the hard drive has nothing on it. Therefore, you can install whatever you want regardless of what used to be on there. The only way this would be a problem is if you were upgrading from a version of Windows that's still on the drive. Only in the case of an actual upgrade are there certain impossible upgrade paths.
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 Changing OS!




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