"Windows 8 uptake has slipped behind Vista's at the same point after its release. Windows 8 online usage share is around 1.6% of all Windows PCs, which is less than the 2.2% share that Windows Vista commanded at the same two-month mark after release. Net Applications monitors operating system usage by recording OS version for around 40,000 sites it monitors for clients. The slowdown for Windows 8 adoption is a bad sign for Microsoft, who experienced great success with the release of Windows 7. Data was measured up to the 22nd of December, so there is still time by the end of the month for Windows 8 to claim a higher percentage of the user base."