Have you followed all the steps in the article? While I had this problem, merely booting from the install DVD and then clicking "Continue to Windows" fixed the problem until the next cold boot. The steps in the article however permanently fixed the problem.
I don't think so, because msinfo32 says 'Legacy' under BIOS Mode and my setupact.log only references BIOS. The part about the post that was related to my issue that my Windows bootloader doesn't seem to work during cold boot. But when I fire up the Windows 8.1 DVD and click "Continue to Windows...
I got the results from the Windows 8.1 auto-repair feature. Nothing suspicious was found.
Startup Repair diagnosis and repair log
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Last successful boot time: 22/10/2013 18:26:31 (GMT)
Number of repair attempts: 1
Session details
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I had this problem in Firefox after my 8.1 upgrade until I disabled hardware acceleration. In Firefox settings, go to Advanced > General > Browsing and uncheck Use hardware acceleration when available. You might have to restart Firefox and/or Windows before you see any effect.
I've tried that before with no luck. It didn't find or fix any errors. I did use a Windows 8 DVD because I haven't downloaded the 8.1 yet, but I'm planning to do so. The Windows 8 DVD had to skip the startup repair section because I'm using 8.1... darn.
Startup Repair diagnosis and repair log...
I did consider that it might be an HDD issue, but a chkdsk scan on the partition where I installed Windows didn't come up with anything suspicious. Any other tests I can run without opening up my laptop?
Yes, for like a split second, but that could be the BIOS.
I'm not quite sure if I'm understanding you correctly. Are you suggesting that I might have the wrong partition marked as bootable? Here's my disk layout:
But then why am I able to get it to work sometimes?
After upgrading to Windows 8.1, I started experiencing a weird boot issue. When I boot Windows I only get a black, empty screen. As soon as the BIOS splash disappears the computer stops booting. No disk activity, nothing. My first instinct was to run bootrec /fixmbr and bootrec /fixboot from...