This is most common problems. all the information collected from google . i also give antivirus link in my description.
1) https://www.hitmanpro.com/en-us/hmp-alert.aspx
2) https://www.zemana.com/AntiMalware
3) www.bleepingcomputer.com/download/malwarebytes-anti-ransomware/
4) http://filehippo.com/download_malwarebytes_anti_exploit/
Thanking you,
