Windows10 of my Dell Precision T3620 is somehow broken. Charging stops after the Dell logo and displays only a blank gray screen with a flashing mouse arrow (meaning no Windows logo is displayed).
I'm trying to recover the operating system from Dell's own recovery partition – but it fails as well.
Getting started in the BIOS (F12 on my machine) I see all the usual BIOS administration options and so-called
Windows Boot Manager – Where should be the option to restore the operating system in my understanding. But to choose
Windows Boot Manager I see again the gray screen and the flashing mouse.
Changing the boot mode from UEFI to Legacy, I see after the selection
Windows Boot Manager Windows logo appears for a short time – but then again the gray screen.
I do not have a recovery media from Dell.
Q: What are the options for running OS recovery that could be helpful in my case?