Microsoft has resumed the rollout of security updates for AMD devices. The updates patch the Meltdown and Spectre vulnerabilities. The Meltdown flaw does not affect AMD devices, but these updates include an OS-level patch for the Spectre flaw. AMD said it was working on firmware updates it hoped to have ready by the end of the current month. The company stopped the rollout for AMD-based computers on January 9 after users reported crashes that plunged PCs into unbootable states. The four other updates that are still paused are: Windows 8.1, Windows Server 2012 R2 Standard.
Source: https://www.bleepingcomputer.com/news/microsoft/microsoft-resumes-meltdown-and-spectre-updates-for-amd-devices/