The Windows 10 Anniversary Update, which was the operating system's biggest update since it launched last year, seems to have caused many users' webcams to freeze. The issue comes from a change Microsoft made in how apps can access the webcam video streams, which Microsoft is now saying it didn't communicate well enough.
MS most likely knew about this webcam problem because there are a lot of Windows 10 beta testers, but pushed out the update anyways.
The new update shorten the downgrade period to 10 days from the original 30 days, so MS probably want more users of Windows 10 because people can't rollback to Windows 7 or 8.1 after 10 days.
Some people also use a webcam connected to a PC as a security camera. If there is no security video of a robber stealing your stuff because of this Windows 10 update problem, the police will have a harder time finding your stolen goods without a picture or video of the robbers.
The judge may also give a non-guilty or shorter jail time verdict to the robber if there is no video evidence of the robber stealing your stuff.