Microsoft just released a major update (which took hours, but that isn't germane right now) and, as usual, created some problems in the process. The first one (on my laptop, not this machine) was turning off the sound. A visit to the troubleshooter, followed by a reboot, fixed that.
Rather more troublesome, after the update this machine wouldn't go to sleep after not being used for a while. After a bit of google-fu, I discovered that the way to solve this (worked for me, anyway) was to go into power settings/change plan/change advanced power settings and have a look at the sleep settings. It turns out that Windows 10 doesn't like having both hibernation and hybrid sleep enabled. Disable hybrid sleep, and the problem goes away.
Just thought this might be useful...
Rather more troublesome, after the update this machine wouldn't go to sleep after not being used for a while. After a bit of google-fu, I discovered that the way to solve this (worked for me, anyway) was to go into power settings/change plan/change advanced power settings and have a look at the sleep settings. It turns out that Windows 10 doesn't like having both hibernation and hybrid sleep enabled. Disable hybrid sleep, and the problem goes away.
Just thought this might be useful...