Quite a large number of users who installed KB4494441 reported getting blank rectangular boxes on YouTube. As a result, they can’t play any videos. It is worth mentioning that this problem usually affects Microsoft Edge. And here’s how one user describes this issue: So, as you can see this bug apparently affects only Windows 10 Pro machines. If you’re using another browser, you should be fine.
How to fix white boxes on YouTube after installing KB4494441
In other words, if you want to install the latest Windows 10 v1809 updates and still be able to play YouTube videos, you should temporarily switch to another browser — if Edge is your default browser. If you don’t know what browser to install, we suggest downloading UR Browser which is excellent for playing video content on the web. UR Browser automatically blocks cookies and third-party trackers so as to ensure smooth video playback. We guarantee there will be no buffering issues on UR. Alternatively, if you prefer to stick to Edge, you could also try to reset the browser and see if this quick troubleshooting step fixes your problem. Here are the steps to follow: We hope this works for you. Have you encountered any other bugs after installing KB4494441? Let us know in the comments below.
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