Crypt0L0cker will lock down your screen. This ransomware infection will display a notice that says your files have been encrypted and so you must pay 1 Bitcoin to receive a decryption key. Please remove Crypt0L0cker from your computer immediately if you want to avoid severe computer security issues. It might be hard to restore your files, but you should NEVER pay the people behind Crypt0L0cker because that would do no good. The program would only keep on terrorizing you about the encryption. Invest in a licensed antispyware tool to protect your PC from similar intruders.