Windows 8.1 Pro Ultra Lite 64 Bits By Azarado Direct

Often replaced by a lighter alternative or removed entirely to save CPU cycles.

Competitive gamers often prefer "stripped" operating systems to ensure zero background "stutter" caused by system maintenance tasks. 3. Virtual Machine Users windows 8.1 pro ultra lite 64 bits by azarado

While a standard Windows 8.1 install might use 1GB to 1.5GB of RAM at idle, the Ultra Lite version often sits well below 500MB. Often replaced by a lighter alternative or removed

Source:  annystudio.com