Press Win + R , type regedit , and hit Enter. Navigate to the KES Folder:
If the above methods don't work, you can try using a third-party uninstall tool, such as: uninstall kaspersky endpoint security without password
If your registry keys are greyed out, you may need to disable the "Self-Defense" module within the Kaspersky settings first (if you can still access the UI). Press Win + R , type regedit , and hit Enter