My Lenovo laptop won't load the desktop after I log in?

My laptop was completely fine the other day, then when I turn it back on the same day, after I log in, when the desktop screen is meant to load, I get black screen and a cursor (I can move the cursor) instead. If I press Ctrl+Alt+Delete I can open the Task Manager and Shutdown and Sign Out and all that, but I just can't do anything?!

The longest I've left it on is about 15 minutes, but still nothing loads. I've tried all I can think of (pressing F5 and F8 and all that / restarting) but nothing happens.

I'm not too sure what to do, and I really need it fixed As soon as possible as it has a lot of work on it that need.

Try force stopping 'Explorer.exe' in Task Manager under the Processes tab, then restart your PC. If explorer doesn't appear under tge processes tab you'll have to log in in safe mode then run a chk dsk with cmd