Final answer:
The best tool to correct damaged system files on a Windows PC is the System File Checker (SFC) utility. Joe can run this tool by opening Command Prompt as administrator and typing sfc /scannow. This process will repair system file corruption by replacing damaged files with correct ones from Microsoft.
Step-by-step explanation:
Joe is experiencing errors about damaged system files on his Windows PC after a virus removal. The best tool to correct this issue is the System File Checker (SFC). This is a utility in Microsoft Windows that allows users to scan for and restore corruptions in Windows system files.
To use the SFC tool, Joe would need to open the Command Prompt with administrative privileges and type the command sfc /scannow. The tool will then scan the integrity of all protected system files and replace incorrect versions with correct Microsoft versions. It is a straightforward process that can take some time, depending on the system's performance and the extent of the damaged files.
It's important to note that the other tools mentioned, such as TASKKILL, DISKPART, and CHKDSK, serve different purposes. TASKKILL is used to terminate tasks by process id's or image name, DISKPART manages disk partitions, and CHKDSK checks the integrity and fixes logical file system errors on disk drives.