Windows 3.1 Qcow2 Jun 2026

Formatting 'windows-31.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=524288000 lazy_refcounts=off refcount_bits=16

If you don't have a qcow2 image file, create a new one using the following command: windows 3.1 qcow2

| Problem | Solution | | :--- | :--- | | | Reduce VM RAM to 16 MB using -m 16 . Windows 3.1 has issues with > 64 MB. | | Mouse doesn't work in Windows 3.1 | Add -usb -device usb-tablet to your QEMU command for absolute mouse positioning. | | QCow2 file grows too large | Run qemu-img convert -O qcow2 windows-31.qcow2 windows-31-compacted.qcow2 to reclaim unused space. | | Screen flickers at high resolution | Stick to 640x480 or 800x600 with 256 colors. Install the "Cirrus Logic 1MB" driver for best results. | | No sound in games | In Windows 3.1, go to Main → Control Panel → Drivers → Add → Creative Labs Sound Blaster 1.5. Set IRQ=5, DMA=1, Address=220. | Formatting 'windows-31

Start QEMU and point it to your MS-DOS installation floppies. A common stable configuration for Windows 3.1 uses the model and ISA-based sound and video. | | QCow2 file grows too large |