You should immediately run a full system scan with a reputable, up-to-date antivirus or anti-malware suite to check for and remove any threats. It would also be prudent to change any important passwords, especially those used for banking or email, as they may have been compromised. Finally, uninstall the pirated software and replace it with one of the legitimate alternatives listed above.

Convert between AVI, MPEG, WMV, DivX, MP4, H.264/AVC, MKV, and more.

: Pre-configured profiles to format video files specifically for older smartphones, tablets, and gaming consoles.

You don't have to choose between paying for software or risking your security. A thriving ecosystem of high-quality, free, and open-source video converters exists, many of which rival or even exceed the capabilities of paid software like Xilisoft.

: A powerful, open-source video transcoder for major platforms.

AVI, MPEG, WMV, DivX, MP4, H.264/AVC, MKV, RM, MOV, XviD, and 3GP.

If you are looking for powerful video conversion without any financial cost, several open-source and free applications outperform commercial software without any of the security risks:

Xilisoft Video Converter Ultimate is a comprehensive video conversion software that allows users to convert, edit, and download videos. It supports a wide range of video formats, including HD and 4K videos.