is it safe to remove all codecs via codec sniper?

Hi, I have a lot trouble viewing videos such as mp4 and rmvb files. I tried K-Lite, Nimo, ACE Mega pack and found some good tutorials on AfterDawn forums, but it all fails. I found a software called Codec Sniper, it finds all the codecs I have and can let me remove the codecs. I am think remove all my codecs and reinstall them again. Is that safe?

Thanks in advance!

can someone help me?

Don’t worry! As safe as a bank account.