A PC auto-restarting after shutdown is often caused by Windows Fast Startup, outdated drivers, or improper power settings. The most common fix is to disable "Fast Startup" in Control Panel > Power Options > "Choose what the power buttons do".
Incorrect Power Settings: Misconfigured settings in Windows might cause your computer to restart instead of powering off. Driver Issues: Outdated or corrupted drivers can prevent smooth communication between hardware components, leading to improper shutdowns.
Common Solutions to Fix Auto-Restart:
- Disable Fast Startup: Open Control Panel, select Power Options, click "Choose what the power buttons do," click "Change settings that are currently unavailable," and uncheck "Turn on fast startup".
- Disable Automatic Restart on Failure: Right-click Start > System > Advanced system settings > Startup and Recovery (Settings) > Uncheck "Automatically restart".
- Disable Network Wake-Up: Open Device Manager, expand Network adapters, right-click your adapter > Properties > Power Management > Uncheck "Allow this device to wake the computer".
- Update BIOS/Drivers: Visit your manufacturer's website to install the latest chipset and firmware updates, as outdated drivers can cause power management issues.
- Run Antivirus Scan: Malware can cause unexpected reboots, so perform a full scan using Windows Security.
- Check Physical Connections: Ensure the power supply is stable, and check that all power cords are secure.
powercfg /devicequery wake_armed
to list the devices currently allowed to wake your computer.
Then, for each USB device listed, use
powercfg /devicedisablewake "Device Name"
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