RelCalc for Windows Requirements
- Microsoft Windows: Win 7, Win 8, Win 8.1, Win 10, Win 11.
- System Processor/Memory/Graphics: as required by your version of Windows.
- Hard Disk Space: approx 30 MB (not including data files that you create).
- Internet Connection: required for installation download, license activation, and daily license validation.
For Windows 10/11 compatibility notes, please see the Win 10/11 FAQ.
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