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Windows 8.1 laptop won't boot [Solved]

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Tone111:
Nope, not even safe mode  :sad: - forgot to mention I'd tried that as well from the advanced options.

Thanks. Okay, I'll dig my flash drive out and copy the dump file to my desktop and analyze it there, and also have a read of those links as well and see if that leads anywhere promising, get back tomorrow as it's late here....  :sleep:

Tone111:
Okay, to update - tried reconfiguring the MBR with one of those links but that didn't have any noticeable effect.

Tried to reboot into safe mode to do something related to the "Third Party ATA Miniport Driver" (although I've no idea what this is or why it should have changed!) but it wouldn't recognize the "shutdown" command  - 'not recognized as an internal or external command, operable program or batch file'; this command is also needed in the section about "Switching the BIOS from AHCI to IDE mode", so I couldn't do that either! Although I did go into the Advanced options UEFI settings (is this the same as the old BIOS settings in W7??), but I couldn't find a switch anywhere that mentioned 'SATA Emulation' or any options to change from AHCI to IDE, so I'm at a complete loss at the moment! :(

Also I was going to copy the crash dump file onto my USB to analyze it on my desktop, but I'm not sure which file to copy or the location - can anyone help me on this one or any of the others above? Thanks :)

Boggin:
Not sure about the UEFI settings being the same as BIOS in Win 7 - you usually had to tap F2 as you switched on as you were outside of Windows.

As for the minidump files, try C:\Windows\minidump - Minidump files should have a .dmp extender.

Tone111:
Thanks. No dump files present in that directory, did a search for any .dmp files anywhere on the OS drive (C:) and there's plenty, but mainly all related to crashes of various programs on the machine, and none from the date of the error - it didn't even "crash" as such, just wouldn't boot back into Windows normal mode after being in safe mode!

One of those repairs did manage to get the laptop into safe mode, but it still wouldn't boot into Windows and went into the same repair loop which couldn't so I'm back into the RE advanced options normal mode again. Also tried another full chkdsk /r, still with no errors, and a different restore point which also wouldn't restore...

Still at a loss - I'm guessing the Refresh PC option or changing any of the registry hives aren't going to make any difference if it won't boot into Windows??

Boggin:
In Win 7's advanced boot options there's one to disable the auto reboot on failure which would produce a BSOD and a Stop Error code and message - but you would need to boot back into the advanced boot options to boot up into any other mode and as F8 doesn't work in Win 8.1 I'm not sure how you would do that.

As you are in the advanced boot options do you have a Repair your Computer to navigate to the RE to run the Startup Repair, or have you already tried that and what does a sfc /scannow or chkdsk /f run from the cmd prompt give you ?

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