I have a users laptop running xp home. it had the problem where as soon as it logs in at the welcome screen it logs straight back off again. I tried all the suggestions and eventually got in by doing the manual restore described on this site (copying the files manually while in recovery console). This has allowed me to access windows but there is still lots wrong. If I try to open a command it closes within seconds, Same thing with task manager. I cannot run any executables and cannot open system restore. I cannot open regedit either. Because I can't install anything I cannot do a scan (it only had an out of date norton antivirus installed). Any ideas what I can do before re-installing the entire system?