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Unsupported characters use in Endpoint Security Client uninstall password prevents January 1st, 2021 patch from being installed Technical Level
Symptoms
  • The following error is displayed in C:\Windows\Internet Logs\EP_CDTDll.log: Disabling self protection Failed turning off self protection
Cause
The Endpoint Security Client uninstall password contains characters other than the allowed ones.
Solution

  1. Change the uninstall password on the Security Management using the allowed characters:
    • English letters in lower or upper case, and these special characters: 0-9 , ~ = + - _ () ' $ . @ 
  2. Wait for the clients to connect to the Security Management to synchronize the new password.
  3. Apply the patch again.
This solution has been verified for the specific scenario, described by the combination of Product, Version and Symptoms. It may not work in other scenarios.

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