Download options:

  Youtube Downloader HD was fully tested. It is 100% CLEAN.

Download Youtube Downloader HD
Version Free. 9 MB. With installer
For Windows 2000/XP/2003/Vista/7/8/10

FLV Converter
Version 1.2 Free. 3.6 MB. With installer
Handy freeware tool to convert FLV files to AVI video

Youtube Downloader HD Portable Version
Version 2.9.76 Free. 12 MB. Without installer. Standalone exe file in archive
For Windows 2000/XP/2003/Vista/7/8/10