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Windows 7: Can't install Windows 7 64-bit

11 Mar 2010   #11

Windows 7 x64 finally!

Windows.old is exactly that, the personal files you had in Vista. You can delete after you are sure you have everything OK in Windows 7

A clean install is recommended to avoid carrying over all the junk we accumulate in the registry over the years. It is not mandatory. You can upgrade, but you might face problems. It seems to be your case, so if you can afford reinstalling all programs and moving your personal files, clean install is the way to go

Please have backups of all your personal files. Everything will be erased with a clean install (OK, put in Windows.old, but it is not worth the risk)

My System SpecsSystem Spec
11 Mar 2010   #12

Windows 7 Home Premium 64 bit

Sorry but that is bad advice. No reason at all to do a so-called clean install, since everything that was on your previous set up is now in Windows.old. In effect, minus the Windows.old folder, you DO have a clean install!

Can you safely delete the Windows.old folder? Absolutely. Of course, I would run it awhile just to make sure that you are happy with the installation, but at that point, it is easy and safe to remove, which is exactly what I did.

Folks get confused between "upgrade" and "custom install". In Windows 7 if you do a "custom install", EVERYTHING from your previous installation, OS/files/programs...everything becomes Windows.old IMHO, this was a very smart decision by MS to help "goof-proof" installation.
My System SpecsSystem Spec
11 Mar 2010   #13

Windows 7 x64 finally!

You will find about 3563 advices here to do a clean install. Not invented by me, colleagues with way more experience than me recommend it.

The difference between an upgrade and a clean install is not only the windows.old folder. Settings and drivers not used anymore, lost registry entries etc are all carried over. And there is no Cccleaner that fixes them all for good.
My System SpecsSystem Spec


 Can't install Windows 7 64-bit

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