Windows – Folders disappear every time Windows XP starts up

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Symptoms:

Whenever my Windows XP machine starts up, subfolders disappear from the first top-level folder, listed alphabetically (eg. from "C:\AA Backups"). The first time it happened I suspected user error (such as an unintentional delete or copy). But I then found it happens on every start-up, sometimes affecting huge numbers of files.

What I've tried:

  • Renaming the affected folder (e.g. to "ZZ Backups") just means that a different folder is affected the next time.

  • Avast found no virus or malware that would seem to be responsible.

  • The missing files are not visible to an undelete utility such as NTFSUndelete.

  • Running chkdsk/f found no problems and did not fix the problem.

  • File permissions also appear corrupted – a few files which should be accessible are missing "read" permission.

What's happened to this machine?

Best Answer

Please have a look at msconfig and then the startup tab. Go through the list and look for some suspicious applications.

You could also try to find suspicious software with http://hijackthis.de/en
Download the tool, run it and paste the log on that website. Maybe hijackthis can found something.

(Edit: If you don't find anything, you could paste your hijackthis-log here to let us have look at it)

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