Hi,
If you noticed that some of your files are missing after updating your computer, it could be that files might be hidden from view, or your files may have been moved. Another reason could be that you're not signed in to the administrator account. Try to search
for your files using the search box on the taskbar. If you still can't find your files, type
indexing in the search box, then select Indexing Options. Click
Advanced to view more options, then select the Troubleshoot search and indexing link and follow the steps.
In case you're still not able to find your files, you can try to restore them from a backup.
To do that, select Start > Settings >
Update & security > Backup , and select Backup and restore. Select
Restore my files and follow the instructions to restore your files.
Let us know if your need further assistance regarding this concern.