In order for you to play Old School RuneScape on Windows with minimal graphics settings, your computer must meet the following requirements
Requires a 64-bit processor and operating system
OS *:
Windows 7 SP1 or higher
Processor (CPU):
Intel i3+/AMD @ 2.4+ GHz
Memory (RAM):
4 GB RAM
Graphics Card:
GeForce 400x, Intel HD 4x, AMD Radeon 7xxx +
Network:
Broadband Internet connection
Storage:
200 MB available space
In order to play Old School RuneScape on Windows with maximum graphics settings, you need a computer with a configuration no worse than the following
Requires a 64-bit processor and operating system
Operating System:
Windows 10 or higher
Processor (CPU):
Intel i3+/AMD @ 2.4+ GHz
Memory (RAM):
4 GB RAM
Graphics Card:
GeForce 400x, Intel HD 4x, AMD Radeon 7xxx +
Network:
Broadband Internet connection
Storage:
200 MB available space