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Network folder permissions issue which affects just one Windows 10 PC

Hi, I have a strange permissions issue which is affecting one Windows 10 PC only. It seems to be an OS issue more than a user permissions issue. There is one folder on a windows 2012 network share which it cannot access, ie doesn't have permissions. Which ever Domain user I log in as on this particular PC its the same. If I log in on another PC I can access it fine so it doesn't seem to be a permissions issue on the server. All users are members of the group which can access this particular folder which is a child of a parent folder of which it has inherited the permissions. I've refreshed the permissions just in case. I don't really want to rebuild the PC. Any clues as to why this would be happening on this particular PC?

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Technical Assurance & Implementation

Hi Please reset the offline cache.


1. Open up registry editor (WARNING: Only for Advanced Users)

2. Browse to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Csc

3. Add a new key (folder) called Parameters

4. Under HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Csc\Parameters, add a new DWORD called FormatDatabase and set its value to 1

5. You will need to reboot the PC afterwards.

Method two: clear the CSC folder

1. Located to C:\Windows\CSC

2. To access this folder, you need take ownership firstly.

3. Right-click CSC folder that you want to take ownership of, and then click Properties.

4. Click the Security tab, click Advanced, and then click the Owner tab.

5. Click Edit. If you are prompted for an administrator password or confirmation, type the password or provide confirmation.

6. Click the name of the person you want to give ownership to.

7. .If you want that person to be the owner of files and subfolders in this folder, select the Replace owner on subcontainers and objects check box.

8. Click OK.

9. Then clear all content in this folder.

Pete LongTechnical Consultant
Distinguished Expert 2019


Whats your build number on this machine? Is it trying to connect on SMB1 and getting refused?

Nick SmithGroup Technology Director


That fixed it, Many thanks, It was driving me crazy!
Zaheer IqbalTechnical Assurance & Implementation


Excellent good to hear it sorted ;)

@PeteLong how you doing longtime ;)

Nick SmithGroup Technology Director


Hi, The user has returned from holiday and started writing to this particular path on the server. After about 2 minutes, windows blue screened with a Kernel security check failure.
This continued to happen until I reverted the reg change which also meant that particular folder is now unavailable again.

I was unable to clear C:\Windows\CSC using method two so i did the reg change. There is still a folder called V2.06 in there. Changing ownership still didn't allow me to remove that folder.

Any other recommendations? That folder should be clear regardless of the reg change right?
Zaheer IqbalTechnical Assurance & Implementation


after reg change a restart is this should clear the CSC.

Nick SmithGroup Technology Director


When I took ownership of the folder using option 2 I got a Failed to enumerate objects in the container error so I was unable to delete the folder inside so I went for option 1.
Making the reg change didn't clear the folder on reboot but did allow me to get into the folder on the server but at the cost of the blue screen. So it could be the permissions on that folder which are causing the issue?