my PC shuts down by itself after 1h or less

Question

browsing or watching videos, etc. the PC shuts down by itself after about 1 hour like the way normal way that pc closes

.

I tried several methods to fix the issue:

Updated Windows

Updated all hardware drivers to the latest versions

Repaired system files using sfc /scannow and other tools

Checked for thermal issues — everything seems normal

Left the PC running in BIOS — no shutdowns occurred

PC Specs:

OS: Windows 11 IoT Enterprise LTSC Evaluation (24H2, Build 26100.7171)

CPU: AMD Ryzen 5 2600

GPU: NVIDIA GeForce GTX 1650 Super

RAM: 16GB (2×8) 3200 MHz (underclocked to 3000 MHz)

How can I fix this problem? browsing or watching videos, the PC shuts down by itself after about 1 hour.

I tried several methods to fix the issue:

Updated Windows

Updated all hardware drivers to the latest versions

Repaired system files using sfc /scannow and other tools

Checked for thermal issues — everything seems normal

Left the PC running in BIOS — no shutdowns occurred

PC Specs:

OS: Windows 11 IoT Enterprise LTSC Evaluation (24H2, Build 26100.7171)

CPU: AMD Ryzen 5 2600

GPU: NVIDIA GeForce GTX 1650 Super

RAM: 16GB (2×8) 3200 MHz (underclocked to 3000 MHz)

How can I fix this problem?

Answer 1

Hi Osama,

Thanks for reaching out to the forum. Your issue is very likely related to the Windows 11 IoT Enterprise LTSC Evaluation edition. Evaluation builds often include a time-based shutdown mechanism if the OS is not activated. This is confirmed by Microsoft: LTSC evaluation versions will automatically shut down every hour once the grace period expires or if activation is missing.

I had this exact error when I was using the same build on an older machine. You will need to get the ISO from authorized distributors for the said exact W11 version or purchase it from Microsoft.

Hope this helps.

Regards,

Rez

Answer 2

It seems that your PC is experiencing unexpected shutdowns after about an hour of usage, which can be frustrating. Since you've already taken several troubleshooting steps, here are a few additional suggestions that may help identify or resolve the issue:

1. Check Power Settings: Ensure that your power settings are configured correctly. Go to Control Panel > Power Options and check if there are any settings that might cause the computer to shut down or sleep after a certain period.
2. Event Viewer: Use the Event Viewer to check for any critical errors or warnings that occur around the time of the shutdown. Look under Windows Logs > System for Event ID 41, which indicates an unexpected shutdown. This can provide clues about what might be causing the issue.
3. Hardware Issues: Since you've ruled out thermal issues, consider checking other hardware components:
   • Power Supply: A failing power supply can cause sudden shutdowns. If possible, test with a different power supply.
   • RAM: Run a memory diagnostic tool to check for any issues with the RAM. You can use the built-in Windows Memory Diagnostic tool.
   • Hard Drive: Check the hard drive for errors using the Check Disk utility. Right-click the drive in File Explorer, select Properties > Tools > Check.
4. BIOS Settings: Since the PC does not shut down when left in BIOS, check your BIOS settings for any power management options that might be affecting the system.
5. Driver Conflicts: Even though you've updated drivers, consider rolling back any recent updates to drivers or uninstalling any software that might conflict with system operations.
6. Malware Scan: Run a full system scan using a reputable antivirus program to rule out malware that could be causing instability.

If the problem persists after trying these suggestions, it may be beneficial to consult with a professional technician for a more in-depth diagnosis.

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References:

• Advanced troubleshooting for Event ID 41: "The system has rebooted without cleanly shutting down first"
• Bug checks (stop code errors)