For Tablets
Windows RT 8.1 Preview requires a Windows RT-capable device that's already running the tablet-oriented operating system and has at least 10 GB of free storage space.
For PC
Processor: 1 GHz or faster
RAM: 1 GB for the 32-bit version or 2 GB for the 64-bit version
Free hard disk space: 16 GB for the 32-bit version or 20 GB for the 64-bit version
Graphics card: Microsoft Direct X graphics device with WDDM driver
It will officially debut on June 26
Windows RT 8.1 Preview requires a Windows RT-capable device that's already running the tablet-oriented operating system and has at least 10 GB of free storage space.
For PC
Processor: 1 GHz or faster
RAM: 1 GB for the 32-bit version or 2 GB for the 64-bit version
Free hard disk space: 16 GB for the 32-bit version or 20 GB for the 64-bit version
Graphics card: Microsoft Direct X graphics device with WDDM driver
It will officially debut on June 26