Windows 10 has this incredibly annoying issue where the start menu and Cortana won't respond forcing you to hold the power button down on your computer for it to even shut down. I've had this problem for months and found a simple solution I haven't found anywhere on the Internet.
Step 1: Log into Windows, easy enough. Make sure you have the weather app in your start menu's tiles. Scroll down to "Weather" in your start menu and drag it into your tiles area, I set mine to large.
Step 2: Open the built in weather app. Open your start menu again until the weather app completely loads. If the weather app doesn't load for some reason, try again. It will most likely show your local weather in the start menu first if you have the weather app in your start menu tiles, which you should for this fix.
Step 3: Minimize the app and DO NOT close it while you use your computer.
That's it, for some reason almost every time I boot up my computer, when I do this I have a responsive start menu and if I don't open the weather app I receive the start menu problem again. Cortana worked as well until I disabled it. There's no definitive solution to fixing this problem but this one works for me, it's much easier than the rest of the solutions I tried too, which was every solution I found on the Internet.
I didn't know where to post this and I figured some people on Google who are looking for a fix would find this useful. Microsoft needs to fix their damn operating system, even a full Windows 10 reinstall didn't fix this problem.