Recently my Windows 10 startup has been acting strangely. Sometimes (not all the time) when turned on, it will show the BIOS screen, show the Windows activity symbol, then black screen. If left alone, after a minute or two it will eventually show the BIOS screen again, then start a disk check. After this, Windows will load correctly (shows the login screen). Any idea of why this might happen?
Other things: I am on a desktop, and I had GRUB installed a while ago, but it hasn't had this problem until recently.