Disable a Windows Service in Rescue Mode
If a Windows service is causing problems — for example, preventing the operating system from starting correctly — you can manually disable it via the Windows Registry in the rescue environment.
Warning: Editing the Windows Registry can cause severe system damage if done incorrectly. Make sure you have a current backup before proceeding.
Prerequisite: Your server must be booted into the Windows Rescue System and connected via VNC. The VNC session password must be exactly 8 characters long. → Starting rescue mode
Step 1: Open the Registry Editor
On the rescue desktop, open the Registry Editor via Start → Run and type regedit.
Step 2: Locate the Service
The Registry Editor first shows the registry of the rescue system. Load your server's SYSTEM hive under the key name RegTemp as described in Disable the Windows Firewall (Step 2), then navigate to the following key:
Find and click the name of the service you want to disable in the list of subkeys.
Step 3: Set the Start Type to Disabled
In the right-hand pane, find the value named Start and double-click it. Change the value data to 4 to disable the service.
| Value | Start Type |
|---|---|
| 2 | Automatic |
| 3 | Manual |
| 4 | Disabled — set the service to this value |
Step 4: Reboot
After making the change, select RegTemp and choose File → Unload Hive... so the change is written to disk. Then close the Registry Editor.
Do not reboot from within the rescue environment. Go to your PowerPanel and cancel rescue mode — this reboots the server back into its normal Windows operating system. → Cancelling rescue mode
Further Documentation
For more information on Windows services and start types, refer to the official Microsoft documentation.