Try this, and reboot after you finish:
1. Launch Task manager
Press the [Ctrl] + [Alt] + [Del] keys on the keyboard at the same time, or right click the Taskbar, and select Task manager.
2. Run a new Windows task
When the Task manager window opens, click the More details option to expand it, then select Run new task from the File menu.
3. Run Windows PowerShell
When the Run new task dialog box opens, type powershell, tick the box for Create this task with administrative privileges and click OK.
4. Run the System File Checker
Type sfc /scannow into the window and press the [Return] key. The scan may take some time and will end with one of three results. Windows did not find any integrity violations and Windows Resource Protection found corrupt files and repaired them mean there are now no corrupt files, but Windows Resource Protection found corrupt files but was unable to fix some (or all) of them indicates a problem.
In this latter case, type (or copy and paste) DISM /Online /Cleanup-Image /RestoreHealth into the PowerShell window and press the [Return] key. This will download files from Windows Update to replace the corrupt ones and, again, this may take some time.