Has Microsoft signed off on Windows 8.1 RTM build? August 24, 2013 by admin Tweet A new rumor claims that Microsoft has now signed off on the final RTM build for Windows 8.1 and that it will deliver it to its many OEM partners in just a few hours. Read more… Neowin Related Posts:Microsoft confirms there will be no Windows 11…Windows Insider Canary Channel members will not get…Microsoft claims it has fixed File Explorer…Build 22635.2921: Microsoft improving Windows 11…The final Windows 11 version 21H2 non-security…