When I try to start my Dell Inspiron 1721 with AMD 64X2 processor 2G RAM 80G SATA HDD it only goes into a loop. The pc was apparently closed during installing updates by someone other than me late last night. I cannot get to safe mode (and therfore cmd prompts) and it only loops immeadiately back to the same page stating the 2 choices of launch statup repair or start window normally. I have done diagnostics of the HD, processor, fan, board, video, screen everything! for many hours and EVERYTHING is working including the HDD so please don't give me the rudimentary change your HDD or re-install or clean installation, because it is fine and I no longer have the discs... moot point. It acts as though when it was shut down during installing updates it will only go into BIOS and the various options, safe, repair, etc. and only loops back to the same screens after windows tries for about 2 seconds to boot (literally). PLEASE HELP! Should I hook it as a slave to another pc (I have the cords to take it out and run externally or will I risk infection to the other computer?) or can I get to cmd prompt w/o safe mode?