Final answer:
The most common tools for personal computer repair are the screwdriver, anti-static wrist strap, and diagnostic software.
Step-by-step explanation:
The most common tool for personal computer repair is the screwdriver. It is used to open the computer case and access the internal components. The screwdriver helps in removing and installing hardware such as hard drives, RAM, and expansion cards.
Another important tool for computer repair is the anti-static wrist strap. This is used to prevent static electricity from damaging the sensitive electronic components inside the computer.
Finally, diagnostic software is a crucial tool for PC repair. This software helps in identifying and troubleshooting hardware and software issues by running tests and generating reports.