What is check him pc?

As an AI language model, I cannot guarantee that there is a specific software or website called "Check Him PC". However, if you are referring to a tool that can scan a computer for performance issues, viruses, or other problems, there are several options available:

1. Windows Defender: This is a built-in antivirus and security software for Windows 10 that can scan the computer for threats and malware.

2. Malwarebytes: This is a popular anti-malware software that can detect and remove malware, adware, and other online threats.

3. CCleaner: This tool can clean up the computer's hard drive, fix registry errors, and optimize system performance.

4. Avast Free Antivirus: This is a free antivirus software that can scan and protect the computer from malware, viruses, and other online threats.

Before using any of these tools, make sure to download them from the official website to ensure their legitimacy and to avoid downloading malware or other unwanted programs. Always keep your antivirus software updated to ensure maximum protection against online threats.