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How to disable driver signature enforcement - Windows 8 & 8.1
Step 1: Enter PC settings.
You can enter PC settings according to the following two procedures.
1. Open Charms Menu by simultaneously pressing WIN key (also referred to Windows logo key) and C key, and
select Settings in it.
a.
2. Click Change PC settings on the bottom.
a.
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Step 2: In PC settings, choose General on the left and click Restart now under Advanced startup, as shown
in the following screen shot.
Step 3: Click Troubleshoot in the next interface.
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Step 4: After entering Troubleshoot interface, tap Advanced options to enter it.
Step 5: Select Startup Settings. Please refer to the picture below.