System requirements for BlueStacks 4

• OS: Microsoft Windows 7 and above.
• Processor:  Intel or AMD Processor.
• RAM: Your PC must have at least 2GB of RAM. (Note that having 2GB or more disk space is not a substitute for RAM)
• HDD: 5GB Free Disk Space.
• You must be an Administrator on your PC. 
• Up to date graphics drivers from Microsoft or the chipset vendor.

• OS: Microsoft Windows 10
• Processor: Intel or AMD Multi-Core Processor with Single Thread PassMark score > 1000 and virtualization extensions enabled in the BIOS (see help). Click on this link to find the single thread Passmark score of your PC's processor.
• Graphics: Intel/Nvidia/ATI, Onboard or Discrete controller with PassMark score >= 750. Click on this link to find the Passmark score of your PC's graphics controller.
• RAM: 8GB or higher
• HDD: SSD (or Fusion/Hybrid Drives) 
• Internet: Broadband connection to access games, accounts and related content.
• Up to date graphics drivers from Microsoft or the chipset vendor.
• We do not recommend installing the BlueStacks App Player if you have a virtual machine, e.g., Microsoft Virtual PC, VMWare Workstation, or Oracle Virtualbox, installed on the same PC.

Also see: How to install the correct BlueStacks version on your PC.