There are various troubleshooting techniques you can use if you are having difficulties using YouTube offline on your Desktop. These are a few typical answers:
Check your internet connection: Ensure that you have a stable and reliable internet connection. YouTube offline won't work if your PC is not connected to the internet or if your connection is too slow or intermittent.
Clear browser cache and cookies: Sometimes, cached data or cookies can cause issues with YouTube. Clear your browser's cache and cookies and then try accessing YouTube again.
Update your web browser: Make sure you are using the latest version of your web browser. Outdated browsers can sometimes lead to compatibility issues with YouTube.
Disable browser extensions: Certain browser extensions or add-ons can interfere with YouTube's functionality. Temporarily disable any extensions, especially those related to ad-blocking or video downloading, and see if that resolves the issue.
Try a different browser: If you're still having problems, try accessing YouTube using a different web browser. This can help determine if the issue is specific to your current browser.
Check for system updates: Ensure that your operating system and drivers are up to date. Sometimes, outdated software can cause conflicts with YouTube playback.
Restart your PC: A simple restart can often resolve various software-related issues.
Disable hardware acceleration: Some users have reported that disabling hardware acceleration in their browser's settings helped fix YouTube playback problems. To do this, go to your browser's settings and find the option for hardware acceleration. Turn it off and see if it makes a difference.
Check for ad-blocker interference: If you are using an ad-blocker, try temporarily disabling it for YouTube and see if that helps.
Try using a VPN: In some cases, your region or IP address might be causing issues with YouTube offline. You can try using a reputable VPN service to change your virtual location and see if that resolves the problem.
I hope this will help.