Microsoft is currently preparing a PC-focused Update 1 to Windows 8.1. Initial reports suggested Microsoft would aim to deliver Windows 8.1 Update 1 in March, but ZDNet now claims this has shifted a month to April 8th. That date aligns with Microsoft’s monthly Patch Tuesday round of fixes, and it’s rumored that the company will distribute the update through Windows Update rather than the Windows Store. Microsoft is expected to announce and detail the update at Build, before releasing it days later.