Final answer:
To solve the problem of renamed system files, a technician can perform a system restore or run a repair installation of the operating system.
Step-by-step explanation:
When responding to a call from a customer who is experiencing problems with a computer, and it's found that a number of system files on the computer have been renamed, there are two possible solutions a technician can implement to resolve the problem. The first solution is to perform a system restore to a previous point before the files were renamed. This will return the system files to their correct state. The second solution is to run a repair installation of the operating system, which will replace the renamed files with the correct versions without affecting the user's personal data.
Restore the system files from a backup: The technician can check if there is a recent backup of the system files and restore them to their original names. This can be done using backup software or system restore functionality.
Rename the files back manually: If there is no backup available, the technician can manually rename the files back to their original names. This may require some knowledge of the system file structure and naming conventions.