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Hi Xav. I'm Greg, 10 years awarded Windows MVP, specializing in Installation, Performance, Troubleshooting and Activation, here to help you.
- Try these fixes that work most for games freezing in Windows 11:
https://support.xbox.com/en-US/help/games-apps/...
https://windowsreport.com/windows-11-crashing-g... (Avoid ad links which intrude into editorial copy, especially avoid Restoro, PC Repair Tool and Reimage ads)
https://www.reddit.com/r/Windows11/comments/op9...
https://www.reddit.com/r/Warthunder/comments/q4...
https://www.reddit.com/r/windowsinsiders/commen...
https://appuals.com/windows-11-freezes-crashes-... (Avoid ad links which intrude into editorial copy, especially avoid Restoro, PC Repair Tool and Reimage ads)
https://devsjournal.com/windows-11-keeps-freezi...
https://www.androidgreek.com/how-to-disable-win...
- See if you can System Restore to a point before the problem started:
https://itechhacks.com/system-restore-windows-11/
System Restore is your first line of defense and can take you back to a point before a problem began. If it doesn't help then you can undo it. Read about it first in the tutorial above and then try restoring to just before this started. If System Restore is not enabled on C drive do that now so it's available in the future.
If the problem repeats or System Restore doesn't work then check which Windows Updates were installed at Settings > Update & Security > Windows Updates > Update History, uninstall them there or System Restore again, then immediately check for and block the Updates with the Hide Updates tool explained here: https://www.droidwin.com/how-to-stop-only-a-spe...
- Update your drivers and BIOS/UEFI firmware from PC or motherboard maker's Support Downloads web page, using the full model number, Serial Number or Dell Service Tag on sticker. Compare the latest drivers available for download with the ones presently installed in Device Manager reached by right clicking the Start Menu. Make sure you have the latest BIOS or UEFI firmware, Chipset, Display (Video), Sound, USB3, Bluetooth, Network and all other drivers, or else download and install the latest now.
Updating drivers from the Device Manager or Windows Update is rarely enough. The most basic thing we need to learn to maintain a PC is keep the latest manufacturer's drivers installed from their Support Downloads web page.
- Run System File Checker/DISM in WIndows 11:
https://www.elevenforum.com/t/use-system-file-c...
- If that doesn't fix it then you can do a Windows 11 Repair Upgrade which reinstalls Windows while saving your files and apps in place, brings it up to the latest version by the most stable method, takes about an hour and resolves most problems: https://www.elevenforum.com/t/repair-install-wi...
Hardware tests:
- Test the memory using WIndows Memory Diagnostics: https://www.techrepublic.com/article/how-to-det...
If problems are found then test the RAM overnight to stress it with the best bootable test memtest86, following this guide to test both sticks and slots:
https://www.tomshardware.com/how-to/how-to-test...
- Test the hard drive or SSD with diagnostics:
https://www.lifewire.com/free-hard-drive-testin...
https://mashtips.com/ssd-health-test-and-perfor...
HP and Dell have hardware diagnostics triggered by tapping the ESC or F12 keys respectively as you power on.
Best is to use the HDD/SSD manufacturer's own if there is one, otherwise use Seatools bootable long test: http://blog.nowherelan.com/2013/04/04/boot-seat...
Follow this up with a full Disk Check from the Command Prompt in Repair Mode or from bootable media: https://www.groovypost.com/howto/check-hard-dri... if necessary from the Command Prompt at boot: https://www.tenforums.com/tutorials/2294-advanc...
- Stress test the rest of your hardware:
https://techguided.com/best-tools-to-stress-tes...
Feel free to ask back any questions. Please report back results for all steps given so I know what else to suggest if necessary.
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