After checking the Recycle Bin, Microsoft's command-line option is worth a try. But a dedicated recovery tool is often your best bet for retrieving a deleted file. Here's how to use one.

VAIO Recovery Center, the software on the partition, can restore the entire C: drive to its original factory state.

Did you change ownership of a system file? Use this guide to restore the original TrustedInstaller built-in user account as the rightful owner of the file on Windows 10.