Disable Automatic Reboots for Service Packs in Windows

Step 1: Open the Group Policy Editor

1. Press Win + R to open the Run dialog.
2. Type gpedit.msc and press Enter.

Step 2: Navigate to the Windows Update Policies

1. In the left panel, go to: Computer Configuration > Administrative Templates > Windows Components > Windows Update
2. Find "No auto-restart with logged on users for scheduled automatic updates installations" in the right panel.

Step 3: Modify the Policy

1. Double-click on "No auto-restart with logged on users for scheduled automatic updates installations".
2. Select Enabled.
3. Click Apply, then OK.

Step 4: Apply the Policy Immediately

1. Open Command Prompt as Administrator: press Win + S, type cmd, and select "Run as administrator".
2. Run the following command: gpupdate /force

This applies the policy immediately without restarting.

Step 5: Verify the Policy is Applied

1. Open Command Prompt as Administrator.
2. Run: gpresult /R
3. Look for "No auto-restart with logged on users for scheduled automatic updates installations" under the Applied Group Policy Objects section.
4. If you do not see the policy listed under Applied Group Policy Objects, restart your machine and check again.