CHKDSK changed permissions on all files
O/S: Vista 64-bit.Problem - At startup, chkdsk decided to change the permissions on all files: 'replacing invalid security id with default security id'. Now, when I boot, I eventually get a white mouse cursor on a black screen, and cannot do anything.I can boot from another drive into Windows 7. If I look at the Vista drive, it shows up as an NTFS drive, but with no capacity or free space information. Disk Manager does show used / free space information.There are a number of ways to solve the problem - booting from DVD and repairing, using an ERD, manually changing the permissions from Windows 7, etc - but I would be grateful if someone would advise as to what the most efficient solution is.Many thanks.
January 19th, 2010 6:43am

Hi, As this thread has been quiet for a while, we assume that the issue has been resolved. At this time, we will mark it as ‘Answered’ as the previous steps should be helpful for many similar scenarios. If the issue still persists, please feel free to reply this post directly so we will be notified to follow it up. You can also choose to unmark the answer as you wish.BTW, we’d love to hear your feedback about the solution. By sharing your experience you can help other community members facing similar problems. Thanks for your understanding and efforts. Best RegardsDale
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January 25th, 2010 8:43pm

Hi,My apologies for not replying until now, but other problems developed (not related to this one). Many thanks for your reply.Unfortunately the issue is not resolved.Under W7, I took ownership of the drive, gave everyone full access to all files, and copied all files to an external disk.Booting with a Vista DVD, and issuing the commandcacls c:\ /g everyone:F /c /t (after changing to c:\windows\system32)resulted in"The data area passed to a system call is too small."I then tried the secedit command given above, to get"A required privilege is not held by the client."Regards,John
February 17th, 2010 9:41am

Hmmm - actually I still have a problem, once logged in as a User part of the Administration group I cannot see any files on the C drive... Maybe I will go with an image restore...
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December 18th, 2010 5:44am

Okay blantant use of security options (take ownership and explicitly setting current user as full control) makes everything accessible - however it makes it more important to find something that can sort out the permissions! Thanks
December 18th, 2010 6:33am

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