Hi Jenny,
I'm an Independent Advisor here to help.
Some people have reported that checking for an update or making a new user profile will fix it, from what I've looked around... but what I would recommend first is to do an in-place/repair upgrade using the Windows Media Creation Tool.
Download it here: https://www.microsoft.com/en-us/software-downlo...
From there, select "Upgrade this PC now" and follow the prompts. This will take some time, but you shouldn't lose your data.
If you find that your computer acts in such a way it's not going to let you do it long enough, let me know. Good luck!