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#1
Windows 10 no longer dual boots properly
Okay, I've clearly managed to mess something up, but here goes...
Prior to a couple days ago, my system was setup in a dual boot configuration, with Windows 8.1 (not set as Default, but technically my "primary"), and the Windows 10 Technical Preview (Default) which I used to play around with as a sort of clean work environment. OS's were installed on physically separate drives.
A couple days ago, I successfully updated my 8.1 installation to 10. Dual boot still functioned properly, although this upgrade reset the 8.1-now-10 to Default OS.
Shortly after, I decided to wipe the Technical Preview drive, and do a clean install of the now-released 10, and reset my whole little work environment. After installation was completed, I immediately noticed that no boot menu presented itself, even for a moment. Additionally, in the Advanced System Options/Startup & Recovery, no other OS choices appear.
For some odd reason, there was ONE thing I did differently during this installation though:
Normally, on a clean install, I will delete ALL existing partitions on a given target drive, and allow the setup to recreate them. However, this time -- possibly because the new-ness of 10 had me slightly confused -- I deleted only the primary data partition that contained the Tech Preview install, but left the System Reserved and OEM Reserved partitions.
I'm unsure if this is the source of my troubles or not.
Regardless, as of right now, I'm unable to access my original 10-upgraded installation, and would greatly appreciate some help in getting this restored.
As I'm sitting on a clean install of my 2nd OS, I've no problems with wiping it and trying again, but I thought I'd wait for a little expert advice first.