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NEW HijackThis automated log analyzer! Get your logs analyzed INSTANTLY!

If you're not finding what you're looking for please go to this forum and submit a new startup entry.


  • "Y" - Normally leave to run at start-up
  • "N" - Not required - typically infrequently used tasks that can be started manually if necessary
  • "U" - User's choice - depends whether a user deems it necessary
  • "X" - Definitely not required - typically viruses, spyware, adware and "resource hogs"
  • "?" - Unknown

Startup Name Process Name Details
XCHK Diskerchkdsker.exe"Added by a variant of the IRCBOT BACKDOOR! See here"
Xchkdskautoexec.bat"Added by the ANPES WORM!"
XDisk Checkchkdsk32.exe"Added by the IM TROJAN!"
XNT Printing Servicechkdsks.exe"Added by the ARCHIVARIUS series of WORMS!"
XNT Printing Servicechkdskss.exe"Added by the ARCHIVARIUS series of WORMS!"
XNT Printing Serviceschkdsks.exe"Added by the BUZUS-M TROJAN!"
X[random name]chkdsk.exe"PurityScan adware. Note - the legitimate Windows chkdsk.exe will always be located in %System% and will NOT figure among the startups!"

DISCLAIMER: It is assumed that users are familiar with the operating system they are using and comfortable with making the suggested changes. I will not be held responsible if changes you make cause a system failure.

This is NOT a list of tasks/processes taken from Task Manager or the Close Program window (CTRL+ALT+DEL) but a list of startup applications, although you will find some of them listed via this method. Pressing CTRL+ALT+DEL identifies programs that are currently running - not necessarily at startup. For a list of tasks/processes you should try WinTasks 5 Standard/Professional from LIUtilities or the list at AnswersThatWork. Therefore, before ending a task/process via CTRL+ALT+DEL just because it has an "X" recommendation, please check whether it's in MSCONFIG or the registry first. An example would be "svchost.exe" - which doesn't appear in either under normal conditions but does via CTRL+ALT+DEL. If in doubt, don't do anything.