- Processor: 1 gigahertz (GHz) or faster
- RAM: 1 gigabyte (GB) (32-bit / x86 version) or 2 GB (64-bit /x64 version)
- Free hard disk space: 16 GB
- Graphics card: Microsoft DirectX 9 graphics device with WDDM driver
- A Microsoft account and Internet access, to access the Windows Store and to download and run apps, with screen resolution of at least 1024 x 768.
I think this minimum requirement of Windows 10 is not to high, may be the Direct 9 graphics which you can get from Microsoft here.
Perhaps, I will use my old Acer 4310 laptop to install this Windows 10 Preview, which the Acer 4310 specs are :
- Processor Celeron 520 1.6Ghz
- RAM : 1GB DDR2.
it means my old laptop can install Windows 10 Preview.