Around some time yesterday, this started to happen:
Yeap. Our trusty Windows search bar just suddenly ceased to work, and we were stuck scrolling through the Start menu and feverishly clicking through a gazillion nested folders like a primitive caveman - for a short while, at least.
Luckily, Microsoft has issued a patch to solve the problem a few hours after it was reported - albeit with users having to restart the computer for it to take effect. If you're still experiencing the problem, it just means it's time to finally shutdown your PC and give it a minute or two of rest before you work it half to death again.