Limit Access to Startup Keys in Registry

Your system becomes unstable because of the malware programs running in the background. You identify these programs and kill them in the Task Manager but these programs will re-appear in the Task Manager after you reboot the system. This is because these programs will run again from the below mentioned registry keys:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce

To run only allowed programs, you need to modify the permissions on the Run and RunOnce registry keys. Follow these steps to limit access to your startup keys:

1. Remove all the unwanted programs from Run and RunOnce registry keys using Registry Editor.
2. Remove any other account from the Security Tab except SYSTEM Account and grant this accound only the “Read Only” permission.
3. Reboot your system.