HTC with Microsoft afterwards due to Nokia's dominance in Windows Phone devices, and started focusing solely on Android. On 1 March 2015, HTC unveiled Vive, a virtual reality head-mounted display in collaboration with Valve Corporation. In June and October 2015, HTC reported net losses; the company has faced increased competition from other smartphone makers, including Apple, Samsung, and others, which had resulted in a decline in its smartphone sales, as well a major loss of market share. Its smartphone market share had risen back to 7.2 percent in April 2015 due to its strong sales of recent devices, but HTC's stock
Usage share of operating systems down to 72.76% and Chrome OS at 3.33%, plus traditional Linux at 1.46%. There is little openly published information on the device shipments of desktop and laptop computers. Gartner publishes estimates, but the way the estimates are calculated is not openly published. Another source of market share of various operating systems is StatCounter basing its estimate on web use (although this may not be very accurate). Also, sales may overstate usage. Most computers are sold with a pre-installed operating system (OS); some users replace that OS with a different one due to personal preference, or install another OS alongside it