pcfaster.exe is a program which is most likely NOT a virus. So, if pcfaster.exe is on your PC, it is most likely ok, and will NOT be a cause for concern. Even if your PC is clean, it is still recommended to purchase a well-known antivirus with a good track record, in order to yourself your system against threats.
Normally, this application is found in C:\Program Files\PC Faster\184.108.40.206\PCFaster.exe.
The MD5 fingerprint for this executable is b6a7c8469e047e64cc378ae224b6fc22.
This application does NOT run as a Windows service. This is normally a good sign.
This executable runs as a 32-bit program. It does not benefit of the entire power of nowadays' PC CPUs. This is quite normal because the authors did not bother to upgrade it to use the x64 instruction set.
pcfaster.exe appears to have visible windows. This means it doesn't run in a kind of invisible mode. Its activity is clearly displayed to the user.
The digital signature is missing from this program. The maker did not bother to sign it. This is probably bad.
This application does NOT have an uninstall routine set up in registry.