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Windows 8.1 startup

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#1 gmccarty


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Posted 01 October 2014 - 10:00 PM

I'm working on a windows 8.1 computer that had a virus that apparently attacked the boot record.  It restarts in a loop unable to find Windows. I created a Windows 8.1 repair disk on a different computer, and booted to the USB drive.  I tried the automatic repair but it would work.  I also tried running refresh but it said the drive was "locked" (what does that mean?!).  Finally I opened a repair console, and ran the following commands:


bootrec /FixMbr

bootrec /FixBoot

bootrec /RebuildBcd


If I leave the USB repair drive unplugged the computer continues to restart in a loop the same as before; however, now when the USB repair drive is plugged in and I tell the bios to boot to the USB drive it will actually boot into Windows 8.1!


I cleaned the virus (I think?!) and everything appears to be working well. 


Any idea how I can get the computer to boot normally without the USB repair disk?


I can re-install from scratch but I would like to avoid that process if possible.  I have a Windows 8.0 install DVD; however, apparently the repair function will not work since the computer has been upgraded to 8.1.


Thanks!  Gabriel



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#2 rockysosua


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Posted 01 October 2014 - 10:10 PM

It appears that you have written the MBR to the USB drive and now, you'd need to repeat the operation, making sure that you specify the correct disk and partition, to write the MBR to the correct location.

Once you get to the command prompt, perhaps you could remove the USB drive and not run the risk of re-writing the MBR to the wrong location.

All is well in Paradise.

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