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1 gigahertz (GHz) or faster 32-bit (x86) or 64-bit (x64) processor
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1 gigabyte (GB) RAM (32-bit) or 2 GB RAM (64-bit)
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16 GB available hard disk space (32-bit) or 20 GB (64-bit)
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DirectX 9 graphics device with WDDM 1.0 or higher driver
These may be the absolute minimum requirements (and will run it hellishly slow) but the requirements for Win7 are still not 'high' unless you're stuck using 10+ year old hardware, in which case everything is relative and you really need an upgrade.