Dual boot with two drives that already have an OS on them.

Dslgirl said:

NavyLCDR
sorry been crazy busy,
originally windows 10 pro was on internal WD HDD on this pc,
then removed it to external drive and put a blank seagate in here,
then installed windows 7 , now want to be able to boot from either,
so both have own there own system partitions .
thanks , any help appreciated,
thanks for all you do

also sorry just not great at this, where do i do this code
bcdboot X:\Windows /d /addlast
c;\windows or users , or ?

You open an admin command prompt which opens at c:\windows\system32.

Obviously you have to substitute X for appropriate letter on other drive for Windows directory.

cereberus

tyvvm

tried it it booted back into windows 7,
So used bcdeasy, then clicked windows 10 and it gives me an error code.
0xc000000e

now i cant boot into either one
windows 7 freezes at starting windows with the 4 color flag

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sorry my windows 10 is in an external hdd enclosure, not a usb,