Windows won't boot

[nareshpipi2787]

My problem is related to two drives seagate 80 gb old 5400rpm and 1 TB WD. My first drive(80gb seagate primary) had Windows 10 (1607) on it. I then installed Win10 (1709) on another WD 1TB drive 80gb logical(1TB with two logical partition 80gb/850gb).

Now I finally happened to settle for 1709 and wanted to get rid of 1609 version. I booted into 1709 and I wiped the partition which contain most of the stuff on 1607 drive. I forgot to change the 1709 partition to primary. Now my pc won't boot up as my os is in logical drive. So please help me .

Disk 0 - 1TB WD
Disk 1 - 80GB SEAGATE

 

[wpgwpg]

Spend 45 minutes and install a bare bones version of Windows on the drive you formatted. Then boot from it and run EasyBCD to set up dual boot. Then you can boot from the version of Windows on the new drive. Unlike prior versions of Windows, Windows 10 will put boot info on a different drive from the one you install on with the results you've experienced. Don't ask me why they decided to do that!

 

[Colif]

The only way I can find to do this also wipes all data on the partition... is there anything on C drive you want to rescue?
boot from installer
on screen after languages, choose repair this pc, not install.
choose troubleshoot
choose advanced
choose command prompt
type notepad
this opens notepad, go to file/open will open a file explorer, copy anything off C onto other partition, or the spare drive.

I am sure there are versions that boot off USB - like this: https://www.easeus.com/partition-master/usb-partition-manager.html

and then do this: https://www.easeus.com/partition-manager-guide/convert-logical-partition-to-primary.html