Microsoft is in the home stretch with Windows 10. Yet another new test build for PCs, Build 10162, is available to Fast Ring testers. By Mary Jo Foley for All About Microsoft | July 2, 2015 -- 17:15 GMT (10:15 PDT) | What is this? The Windows 10 "Ludicrous" test ring or something? It's actually the "faster Fast Ring," according to a July 2 blog post announcing yet another new Windows 10 test build. Microsoft is making available to its Windows Insider testers on the Fast Ring yet another new Windows 10 test build. Today's build, Build No. 10162, is the third preview build for Windows 10 for PCs that Microsoft has rolled out this week alone. Build 10162 follows by a couple of days Build 10159, which provided 300 new bug fixes, plus the new Windows 10 wallpaper, to the five million registered Windows Insiders. On Tuesday, Microsoft rolled out Build 10158. What's new in today's build? There aren't any details in Microsoft's July 2 blog post, other than the claim that "our testing and internal telemetry metrics show it has better reliability, performance, battery life, and compatibility than any Windows 10 Insider Preview build so far." If this new build passes muster, Microsoft is likely to make it available to Slow Ring testers, with ISOs, next week, officials said. It's not too surprising that Microsoft is picking up the Windows 10 preview rollout pace, given the company should be releasing to manufacturing Windows 10 in the next couple weeks (at the latest). Along with Microsoft employees and select partners, the Insiders are Microsoft's bug-squashing squad. Microsoft will begin rolling out Windows 10 for PCs on July 29. Windows 10 Home and Pro users who want to take advantage of the "first-year-free" promotional deal will get the OS starting that day, which marks the start of Windows 10's staggered rollout. Windows 10 Enterprise and Education users will be able to get the final bits starting August 1.