Summary

Frustrated by your box constantly restarting on its own?

A disruptive reboot loop can make it hard to be productive.

They will either repair it or recommend getting a replacement.

A 650W power supply mounted in a desktop PC.

Hannah Stryker / How-To Geek

This can cause system instability and trigger random restarts.

To fix this, reduce the load orreplace your PSU with a more powerful one.

It will do this to protect other components from heat damage.

The results of sfc /scannow on our example PC. It returned some problems, but SFC repaired them.

Chifundo Kasiya / How-To Geek

One of the signs of an overheating PC is automatic restarts.

Then, do everything you’ve got the option to tokeep your setup from overheating.

Scan Your Windows PC for Viruses

Some viruses can also force your setup to restart.

Entering ‘sysdm.cpl’ in Windows Run

Thankfully, Windows releases updates that patch these up.

All you have to do isupdate your Windows 11 computerand monitor it to see if the random reboots stop.

To fix that, a quickSFC and DISM scancan help.

Selecting ‘Settings’ in the Startup and Recovery section of the Advanced tab in System Properties

The former repairs system files when they’re corrupted and the latter will replace any that are missing.

To undo them,do a system restore.

Keep in mind that this will only mask the problem that is triggering the restarts.

Disabling automatic restart in Windows 11

We recommend continuing with the troubleshooting steps below, even if your gear seems fine.

This process is known aspaging on Windows.

A major caveat to paging is that it can affect your gear’s performance.

Restarting Windows in the Windows Memory Diagnostic tool

And if your system relies on it too much, it might become unstable and trigger random reboots.

you could use the Memory Diagnostics Tool to scan your rig for memory problems.

When your gear restarts, the Windows Memory Diagnostic Tool will perform memory tests.

The Windows Memory Diagnostic Tool running checks

Chifundo Kasiya / How-To Geek

If it detects an error after performing the tests, take note of it.

you’re free to then check the manufacturer’s website for information on how to fix the error.

There’s “Basic,” “Standard” (the default), and “Extended.”

The Options screen of the Windows Memory Diagnostic Tool

Chifundo Kasiya / How-To Geek

Uninstall Recent Updates

If the random restarts started happening after an update, uninstalling it may help.

There are many reasons why an update can cause problems on your PC.

Uninstalling updates can cause instability on your PC.

Uninstalling updates in Windows 11

This can cause many problems, from apps not working to errors and crashes.

If it was a security update, it could also put your PC at risk.

To uninstall a recent update, press Win+i to pop launch the controls app.

Then, head to Windows Update > Update History > Uninstall Updates.

Find the problematic one and click “Uninstall” next to it.

Once the update is uninstalled, cycle your Windows PC and monitor it for more self-restarts.

We recommenddoing an in-place upgrade, which will reinstall Windows without erasing any of your files and apps.

If that doesn’t work, you canreset your Windows 11 computerto give it a completely fresh start.

confirm you create a backup of your most important data before resetting it.

Grab your laptop or system unit and give it a gentle shake.

To fix that, you’ll need to repair or replace the part.

If you might determine which component is damaged, you might probably replace it yourself.

Repairs are more complicated, and you’ll usually need a computer hardware professional to take a look.

They can also install a replacement component if it becomes necessary.

Having your Windows 11 computer reboot itself constantly is frustrating because it makes it hard to get work done.

It can also signal that there’s a major software or hardware problem with your PC.