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WIn 10 install gone bad. Pls help

Ho72

Member
Short version: Tried to do a clean install of Win 10 (to a separate drive from my current OS). Wanted a dual boot config with Win 8.1, ended up with something else, i.e., a Win 10 ONLY computer. No boot options. Unpluged the drive with the new OS and, as expected, received startup errors (Recovery screen). Tried to restore Win 8 boot functionality with Macrium but get the same result -- won't boot into 8, get Recovery screen.

I can choose my Win 8 OS drive in the F8 boot menu and it's all good. My questions: how do I restore the normal boot operation to the way it was prior to my borked Win 10 endeavor? And where did I go wrong with dual boot? I need to keep 8.1 around so I can use it to get work done while I configure 10 at my leisure.
 
Your analysis sounds confusing. OTOH you say
won't boot into 8, get Recovery screen.
But then say
I can choose my Win 8 OS drive in the F8 boot menu and it's all good.

If one installs into a machine with more than one drive, one is well advised to disconnect any drive but the target so the installer does not have the opportunity to distribute the OS over the several drives.
 
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Your analysis sounds confusing. OTOH you say
won't boot into 8, get Recovery screen.
But then say
I can choose my Win 8 OS drive in the F8 boot menu and it's all good.
These are two separate things. If I allow my machine to boot without intervention, I get the Recovery screen. If I boot while pressing F8, I'm presented with the Advanced Boot Options menu where I can select my WIn8 drive and then my computer loads Win8. So it's all good as long as I'm willing to intervene on every boot, which I am not.
If one installs into a machine with more than one drive, one is well advised to disconnect any drive but the target so the installer does not have the opportunity to distribute the OS over the several drives.

If you do this, then the installer will be unaware of the second OS and no boot-time OS selector menu will be created. At least that's how it worked when I did this back in the W2k days. Of course, back then there was a file I could edit (boot.ini?) that would resolve the problem I'm currently having. Maybe such a file still exists, but they've not made it obvious (to me at least) where it resides.
 
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