While it is possible to obtain a computer with no or free operating systems, virtually all large computer vendors continue to bundle Microsoft Windows with the majority of the personal computers in their ranges. The claimed increase in the price of a computer resulting from the inclusion of a Windows license has been called the "Windows tax" or "Microsoft tax" by opposing computer users. The Findings of Fact in the United States Microsoft antitrust case of 1998 established that "One of the ways Microsoft combats piracy is by advising OEMs that they will be charged a higher price for Windows unless they drastically limit the number of PCs that they sell without an operating system pre-installed. In 1998, all major OEMs agreed to this restriction." Microsoft also once assessed license fees based on the number of computers an OEM sold, regardless of whether a Windows license was included; Microsoft was forced to end this practice due to a consent decree. In 2010, Microsoft stated that its agreements with OEMs to distribute Windows are nonexclusive, and OEMs are free to distribute computers with a different operating system or without any operating system.