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On my HP laptop, I have two partitions: a c-drive and a d-drive. Windows 7 was installed on the d-drive. I downloaded Windows 8 using Windows Upgrade Assistant and installed.

My question is on which drive did Windows 8 install?

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Are you currently using that Windows 8? If so, press Win+R and type %windir% hit enter and you will see in which partition it is located Windows directory. – vhanla Nov 3 '12 at 10:34
Thank you. It was in the c-dive. But that folder was only 1gb big. That can't be all? – Alfred Larsson Nov 3 '12 at 10:39
If you upgraded from Windows 7, then by definition, Windows 8 is installed on the same partition your old OS, Windows 7 was installed. If you wanted it to be dual boot on a separate partition, then you need to install a new copy, and do that by using a CD boot disk, and select the correct partition to install it on – ronalchn Nov 3 '12 at 10:40
But how come I come to c:\ when I enter %windir% in run? – Alfred Larsson Nov 3 '12 at 10:44
I don't know, because I don't know exactly what you did. – ronalchn Nov 3 '12 at 11:07
up vote 2 down vote accepted

Go to computer view and you will see the Windows logo icon indicating where the system was installed. See this.

enter image description here

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