Dual Boot OS Win10 and Win11

Petrolhead · 3 Oct 2024 at 13:40

I decided I wanted to try Win 11 before commiting so decided dues boot. I had a spare 250GB SSD laying around so installed it and followed the following:

https://uk.pcmag.com/migrated-3765-windows-10/135645/how-to-dual-boot-windows-10-and-windows-11

Whats weird is this worked with my old system which I have just upgraded but anyway its no longer works. I get the dual boot option of Windows 10 and Windows 11. Windows 10 works fine but 11 gets me a blue screen of death. Error code 0xc 000000e and a ref to a srttrial.txt log file I get this:

Name: System boot log diagnosis
Result: Completed successfully. Error code = 0x0
Time taken = 0 ms

Boot manager generic failure 0xc000000e

Root cause found:
---------------------------
Boot manager failed to find OS loader.

Repair action: File repair
Result: Failed. Error code = 0x57
Time taken = 860 ms

Repair action: Boot configuration data store repair
Result: Failed. Error code = 0x490
Time taken = 31 ms

Scratching me head now as to how to fix it?

marc2003 · 3 Oct 2024 at 13:58

To reset everything back to normal:

-right click the start button>run>msconfig
-on the "boot" tab, highlight the entry for windows 10 and "set as default"
-now remove the entry for windows 11
-click OK to close msconfig and reboot when prompted
-it should now boot with no choice and you're back to how you started.

I always dual boot from mounting the ISO in windows without booting from USB. There's no point. To do that:

-format the spare SSD using disk management and make sure it has a drive letter
-mount the windows 11 ISO and run setup.exe from the sources folder (not the root of the ISO)
-follow setup steps choosing the freshly formatted SSD
-complete setup as normal

Petrolhead · 3 Oct 2024 at 13:59

marc2003 said:
To reset everything back to normal:

-right click the start button>run>msconfig
-on the "boot" tab, highlight the entry for windows 10 and "set as default"
-now remove the entry for windows 11
-click OK to close msconfig and reboot when prompted
-it should now boot with no choice and you're back to how you started.

I always dual boot from mounting the ISO in windows without booting from USB. There's no point. To do that:

-format the spare SSD using disk management and make sure it has a drive letter
-mount the windows 11 ISO and run setup.exe from the sources folder (not the root of the ISO)
-follow setup steps as normal choosing the freshly formatted SSD
-complete setup as normal

Thanks but I want to fix it so dual boot works

Petrolhead · 4 Oct 2024 at 11:50

Well it just seemed to have fixed itself

Petrolhead · 4 Oct 2024 at 11:52

Petrolhead said:
Well it just seemed to have fixed itself

Nope i lied. Worked once did some win11 setup, rebooted and blue screen again

I think the problem occurs after the install process looks for updates and then auto reboots, at which point its knackerd

So whati am going to try is install another copy of win10 then upgrade that. Fingers crossed. Edit.. That failed also

Petrolhead · 4 Oct 2024 at 13:05

ok, now cooking on gas

on the old pc i was able to dual boot onto a spare SSD. Not this time, instead i have had make the c drive smaller and create a small partition.

So it worked and i have a working windows 11

Bubo · 4 Oct 2024 at 14:59

There was also the option of trying it out in VirtualBox within a Windows 10 environment. I've done that on a laptop which is ok just to have a look at the interface etc.