Windows 10 will generally run on the PC already using Windows 7 and 8. There are specific requirements which are listed below: RAM: 1GB or 2GB for 32-bit and 64-bit, respectively. Hardisk: 16GB or 20GB for 32-bit and 64-bit OS, respectively. Processor: 1GHz or any other fast processor. Display: 1024* 600. etc.