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installation - Is it possible to install Windows Vista over Windows Vista?


Windows Vista Ultimate is currently installed on the computer. It's a genuine full license version that came in a retail box. I installed it from the DVD disc. Now, can I use the same DVD disc to install Windows Vista Ultimate once again on the same computer, but this time in upgrade mode?


Is this a license violation? Is it even technically possible? Will the Windows Vista setup guide just tell me "Windows Vista is already installed you moron" and tell me to buzz off? I mean I'm pretty sure that it won't protest if you are upgrading from Windows Vista to Windows 7 or to Windows 8. But what if you're going from Windows Vista Ultimate to Windows Vista Ultimate (even the editions are the same)? Will it swallow that?...


I have never tried this before, so I wouldn't know. When I need to re-install Windows I usually do a disk format and then a clean install on top of that. The reason I ask this is because I have a registry corruption of some sort, and despite my efforts I have been unable to resolve it. So I am hoping that the re-installing Windows Vista in upgrade mode will force it to correct or re-create the registry. Am I under false assumption?...


Is there perhaps another way to have the Windows registry recreated?...



Answer



Yes, this will work. This is known as repair installation/inplace upgrade:


http://www.vistax64.com/tutorials/88236-repair-install-vista.html


You should run it when you have issues that tools like sfc.exe can't fit.


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