Recently, inexplicably, my wireless bluetooth iClever mouse decided that its thumb buttons used for stuff like forward and back in browsers and Windows Explorer and other applications should no longer work.
No idea if a recent Windows 10 update was the culprit or what, but I found a very simple solution via a post on Reddit. Simply unplug the mouse's little USB transceiver and plug it into a different USB port on your PC.
That's it. That's the post.
I'd already tried removing all bluetooth devices from Device Manager including hidden ones and rebooting, no joy. No clue if should this happen enough times if I might eventually run out of USB ports my mouse deigns to allow control of it.