A typically includes integrated security updates, jailbreak tools for running unsigned desktop ARM apps, and fixes for common startup errors like 0xc000000d . Where to Find Patched Windows RT 8.1 ISOs

By default, Windows RT only runs apps from the Windows Store (now largely defunct for RT) and Microsoft-signed software like Office 2013.

Standard Windows RT 8.1 installations face significant hurdles today:

Microsoft never released a standalone ISO for Windows RT; it was only provided via recovery partitions or the Windows Store.