Windows 8 doesn’t boot up, only black screen and cursor

bootsystem-recoverywindows 8

I had a Windows 7 and Ubuntu dual boot system, after upgrading to Windows 8 I uninstalled Ubuntu (deleted partition) and was getting a 'grub: no such partition' error.

I tried fixing by re-installing Ubuntu and also using Windows 8 USB using bootrec everything.

Now I am just getting a blank screen with cursor (_) when I boot up.

I just want to get back the ability to boot into Windows 8.

Edit: Can not install Windows 8 again as it requires reboot, which leads to the blank screen again.

Other partitions seems good, except the Ubuntu one I deleted, swap and a windows ~350 MB partition which I think was as Ubuntu boot when I tried to re-install (not sure).

Best Answer

[FIXED] Recovered Windows 7 and now re-upgrading to 8. Had to format the windows partition.

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Windows 7 boots to black screen with blinking cursor

With this setup, an in-place upgrade of windows 7 should recover it. It installs a new win7 OS on top of the existing Win7, keeping any user settings and application installs. That will again load the Windows boot loader over grub. You can recover grub without reinstalling linux. Search for "recover grub2" for your favorite author blog.

Windows – Every windows 8 boot breaks grub

Seems like the answer might be in this other post: run the following in Windows 8 to prevent corruption on shutdown:

powercfg /h off

Unfortunately, I can't test it because EasyBCD broke the Windows bootloader, then EasyRE failed to repair Win8 but disabled my ability to boot linux. The break was so bad that Windows recovery drive can't do anything either. So thanks to neosmart, I went from a small problem with two OS's, to a machine that's less useful than a potato.

Rather than try to dig my way out of this mess, I think I'm just going to wipe the system and start from scratch. If it is applicable, I'll try the above command and report back.

Best Answer

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Windows 7 boots to black screen with blinking cursor

Windows – Every windows 8 boot breaks grub

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