Hi teresakrajewska
Method 1: Let's go to the basic locations to look for your files. Follow these steps:
Check your Recycle Bin.
Open File Explorer and search for the file and see if it shows up.
Method 2: Use File History to restore your files.
Assuming your File History back up settings was enabled, we can easily restore your missing files from there. Follow these steps:
Press Windows key + S and type File History.
Click Restore your files with File History.
Enter the name of file you're looking for in the search box, or use the left and right arrows to browse through different versions of your folders and files.
Select what you want to restore to its original location, and then select the Restore button.
If you want to restore your files to a different location than the original, press and hold or right-click the Restore button, select Restore To, and then choose a new location.
Method 3: Restore to an earlier point.
Go back to the point before the update was installed to recover your files. Follow these steps:
Go to Settings and select Update & security.
Click Recovery and then Restart now under Advanced startup.
In the Advanced startup screen, choose Troubleshoot.
Select Advanced options and then System restore.
I hope this can help you