Microsoft halts adding new apps to MarketPlace due to error August 15, 2012 by admin Tweet Due to a certificate issue with Windows Phone 7.5 users who upgraded from an earlier version, MarketPlace apps have thrown up all types of errors while attempting to install; Microsoft is on the case. Read more… Neowin Related Posts:Microsoft says the Xbox 360 Marketplace will still…Microsoft provides workaround for expired Windows 11…Microsoft confirmes Windows 11 KB5034765 fails to…If the Windows 10 Patch Tuesday update (KB5031356)…Your Windows 11 install could fail with 0x8007007,…