Optiplex 755 Win 10 64bit Yesterday decided to do a clean install via Windows options. All sorted, booted up, no USB mouse or keyboard can be used. Read all the posts regarding removing the Win 10 update that caused this to happen, but as it’s a clean install it can’t find the update. Tried through CMD too. I’ve reset the BIOS and still nothing. Haven’t got another PC to build a USB Boot Pen. I can’t get into safe mode at all. There are no PS/2 options either. Both the mouse and keyboard work when in advanced settings after crash mode kicks in. Is there anything I can do other than buy a boot USB from eBay? The next time I can get on another PC is next Sunday. Anything else I can try?