Hi there, I hope you can help me with this one, because I don't know what to do.... Since I last booted my computer, a new error showed up at the logon Windows, saying that RRservice caused and error "Memory Can't be "Read". After loading I noticed that many programs didn't start and I found many services where not started and couldn't be started. I changed the RPC Service to "local user" instead of "local service" and now many more services load. However I can't start IE(freezes), Outlook, my fingerprint detector and some other services that I need to use keep saying that "authentication package is unknown". I don't know what the reason can be as I lately installed / deinstalled different programs & clean utilities. By the way, Mozilla works perfect. Attached Hijackthis.txt. Thanks in advance.