RE: New Dell Bios rendered XPS desktop unusable
While in BIOS setup to check RAID vs AHCI, make sure Secure Boot is Disabled and Compatibility Support Module (CSM) and Legacy ROM Options are both Enabled.
Be sure to save the changes before exiting setup and see if it boots this way. If not, try the things in my previous post.
Forum Member since 2004
I am not a Dell employee