Windows Legacy OS forum

General discussion

lsass.exe - operation failed

by pmdayot / July 6, 2005 1:46 PM PDT

hello everyone!

i have a problem with starting my pc. while starting, there is a message that appeared "lsass.exe - operation failed" and down in the same box, there is this " the requested operation was unsuccessful" that also appeared. now i can't use the pc.

assistance please, if you have encountered this kind of problem. thanks a lot..

btw, the os is windows xp prof.


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lsass.exe can often be added
by MarkFlax Forum moderator / July 6, 2005 9:43 PM PDT
Collapse -
Possible virus, but fix registry works
by gpicardo / December 13, 2007 4:08 AM PST


copied the corrupt system file (windows directory\system32\config\system) into a temporary directory, and copied the default microsoft backup (windows directory\repair\system) over the corrupt file.

Works !! very well!!

I find this solution here:

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Solved lsass.exe - operation failed
by royhomes / October 29, 2009 3:09 PM PDT

My system was rebooting at startup with the same error in normal and safe mode. I found that it was the result of having madmacs installed with a dictionary file as a source for rotating my computer name. It just happened to rename my system "disestablishmentism" lol. I guess windows doesn't like such long names. I booted up the system using the ultimate boot cd for windows. I used the regedit(remote) app and told it to load my main profile and checked the load all remaining profiles checkbox, then modified the keys at hklm\system\control\controlset###\control\computername\computername and changed the ComputerName values data to a shorter name. I had controlset001-004 on my machine but 002-004 where the only ones that had the keys. Hope this helps someone like me. Happy

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