Windows 8.1 marks the triumphant return of the Start button but according to a new report, it won’t do much at all to help reinvigorate the sputtering PC market. Microsoft finally let Windows 8.1 loose on the world earlier this week and the new software includes a host of new features. Among them are two keys — the ability to boot and log in directly to the Desktop view, and the return of something that somewhat resembles the Start button users had missed so much in Windows 8. The early response to Windows 8.1 seems positive but according to Digitimes’ anonymous supply chain sources, Microsoft’s new operating system update is unlikely to reverse the PC market’s decline in 2013 and even in 2014. The report notes that PC vendors including Acer, Asus, Lenovo and HP are all “optimistic” about Windows 8.1’s potential though, and they’re ramping up orders with the hope that sales pick up this holiday season.