What does uninstall-wubi.exe do? Does it uninstall just wubi or complete Ubuntu? I installed Ubuntu 12.04 in Windows 7 and now have Windows 8 in place of Windows 7 and I want a fresh copy of Ubuntu 12.04
1 Answer
It removes the Ubuntu (or other flavour) that you installed using wubi.exe and it removes the registry entries, boot entry and folders/files that were placed on your computer.
In other words it reverses what running wubi.exe did.
Since Wubi doesn't interfere with how Windows boots, it cannot stop it booting either. So you can safely install and uninstall without affecting Windows.
Finally, in your situation, you installed Windows 8 over Windows 7. This means that the boot entry and the registry entries are all gone. All you have left is the C:\ubuntu folder. So, running wubi-uninstall.exe won't work. For you to install fresh, you just have to delete that folder and then run wubi.exe again.