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Thanks. Exciting news, but it said I need to use Windows 8 disc to repair; as soon as I click repair it said incompatible OS.
– CppLearner
Commented Sep 8, 2013 at 2:04
If that doesn't work you could use a partitioning tool like EaseUS Partiton Manager. It has a bootable version that supports conversion to and from GPT (it also has support for doing so without data loss).
– user201262
Commented Sep 8, 2013 at 2:10
I didn't try this method but it works. I believe your method will work so I will also upvote.
– CppLearner
Commented Sep 8, 2013 at 4:28
2

From @JasonErickson: You can clean the disk with diskpart by booting any windows Vista,7,8.x,2008.x,2012.x install media. When the welcome screen comes up press "Shift+F10" and it will bring up a command prompt window. Then type diskpart. Then follow the previous directions to clean the disk and convert to MBR. This is an alternate route to diskpart.
– fixer1234
Commented Jan 24, 2015 at 18:44
If you can't see the "Command Prompt" option, press [shift]+[F10] to enter CMD
– mjb
Commented Jan 27, 2019 at 9:49

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