Hello,

I’m experiencing a recurring issue when logging into Windows.
In the Event Viewer, I consistently get the following error:

Event ID 1552, “User hive is loaded by another process (Registry Lock) Process name: C:\Program Files (x86)\Kaspersky Lab\Kaspersky 21.22\avp.exe, PID: 7496, PID ProfSvc: 2416

I sometimes can’t log into my main user profile, or Windows reports problems with the user registry and class registry.

Could someone please explain what this error means and how to fix it?
Is it a known issue related to Kaspersky processes (avp.exe) holding the user registry hive open during logon/logoff?

System details:

• Windows 11 Pro

• Kaspersky version: 21.22.7

• Event ID: 1552 (User Profile Service)

Any guidance or troubleshooting steps would be greatly appreciated.

Edited October 25, 2025Oct 25 by Alessandro_inv
More info provided

14 минут назад, Alessandro_inv сказал:

Event ID 1552

Kaspersky version: 21.22

Strange, this bug should be fixed in this version. Temporary solution - to disable "Weak settings scan".

But there is a new 21.23... don't know if it will be delivered to KFree...

6 minutes ago, AlexeyK said:

Strange, this bug should be fixed in this version. Temporary solution - to disable "Weak settings scan".

Thanks for the tip. For now, I’ll go with disabling the "Weak settings scan".

@Alessandro_inv I've just checked on two systems with 21.23 - there are no events 1552. They also didn't logged right after releasing of version 21.22.