DELL XPS L502X Won't Boot, or accept MS Recovery Disk

Hello,

My 64bit XPS L502X from around 2007, (which came with Windows 7), was successfully upgraded to Windows 10 when it was free. It has been running perfectly ever since, but today it crashed and wont boot into Windows.

I have a Win 10 recovery disk created on a HP PC, (which works on the HP), but it is not accepted by the DELL and says its not a bootable media. (WRONG! - it sure is).

Alas... I don't have a Win10 recovery disk created by the DELL.

Would the DELL be looking for a special variation of a boot recovery DVD?

I have the original DELL Win 7 installation disk, but if I use this I will lose my Activated edition of Win 10.

======================================
THE ERROR MESSAGE IS...

"RECOVERY"
There was a problem with a device connected to your PC
An unexpected I/O error has occurred
Error code : 0xc00000e9
This problem can happen when a removeable storage device is removed
while it's in use or is failing. Properly connecting any removeable
storage and restarting your PC may fix this problem."

See Screen Grab also...

=========================================
This laptop was not using any USB device at the time of the initial crash. No USB mouse, keyboard, memory stick or anyting. I was using it when suddenly the screen went Black.

Going into Safe Mode via "8" does not allow a way forward as the Error Screen simply re-appears.

BIOS has been reset - no change.

I don't know how I should proceed. What are your recomendations for a way forward?

Thanks

SFG