Install Winnux alongside Windows

Keep Windows and install Winnux alongside. You can choose which system to boot each time you turn on your computer.

Before you begin

• Back up important data
• Free up disk space — at least 20 GB for Winnux
• Disable BitLocker if enabled (temporarily)
• Have a USB stick with the Winnux ISO

Step 1 — Prepare disk

In Windows, open Disk Management and shrink your C: drive by at least 20 GB. The freed space becomes the Winnux partition.

# Alternatively via command line:
diskmgmt.msc

Step 2 — Boot from USB

Boot from the Winnux USB stick and choose "Install Winnux" in the boot menu.

Step 3 — Choose installation type

The installer shows:

• Install alongside Windows: Uses the freed space automatically
• Clean installation: Erases everything on the disk (advanced)

Choose "Install alongside Windows".

Step 4 — Configuration

1. Select language and region (Winnux Welcome)
2. Connect to WiFi (optional)
3. Create a local account (no online account required)
4. Select graphics driver (automatic detection)

Step 5 — Restart

After installation, restart. You will see a boot menu (GRUB) where you can choose Winnux or Windows.

Troubleshooting

If Windows does not appear in the boot menu, open Winnux Repair and run "Restore boot menu".