Hello, MollyBee7
Welcome to Microsoft Community.
Have you tried disabling hardware acceleration in browser settings? Sometimes this feature may affect certain sites:
In Edge, press Alt + F at the same time on your keyboard > Select Settings > System and perfomance > Under System, disable Use hardware acceleration when available
In Chrome, click on the top right corner of the window > Settings > System > disable Use hardware acceleration when available
In Firefox, click on the top right corner of the window > Settings > General > Under Performance, Uncheck the box next to Use recommended performance settings, then uncheck Use hardware acceleration when available
Here are some other troubleshooting steps:
- Create a local user or administrator account in Windows. Most of Windows profiles and settings will be reset to default in the new account, so as to determine whether there is something wrong with the previous profile or settings.
- Perform a clean boot in Windows. A "clean boot" starts Windows with a minimal set of drivers and startup programs, so that you can determine whether a background program is interfering with your game or program. According to another user's feedback, an app on their device was interfering: Cant access certain websites on all browsers - Microsoft Community. Although it was not found out through clean boot, but the result was the same as through clean boot. This is similar to starting Windows in Safe Mode, but provides you more control over which services and programs run at startup to help you isolate the cause of a problem.
Disclaimer*: These steps might look complicated at first glance. However, to avoid any trouble or mistake, please follow them in order and step-by-step so that it will help you get you back on track.*
If all the solutions don't help, consider resetting your PC. See detailed steps in Recovery options in Windows - Microsoft Support. Be sure to back up your files in advance.
If you've tried the steps above or don't see a solution to the problem, send feedback to Microsoft with the Feedback Hub app. This helps Microsoft determine the root cause of the problem. Include specific details about what you were doing when the problem occurred.
Feel free to let me know if you have other concerns.
Best regards
Yuhao Li
Microsoft Community Technical Support