Issue Description
Improper dual-boot setup can overwrite the Windows bootloader or cause data loss.
Common Causes
- No disk partitioning plan
- Incorrect bootloader installation
Step-by-Step Solution
Step 1: Back Up Important Data
- Back up Windows data to external drive
Step 2: Create Free Space
- Open Disk Management
- Shrink Windows partition to create unallocated space
Step 3: Disable Fast Startup
- Open Control Panel → Power Options
- Disable Fast startup
Step 4: Install Linux
- Boot from Linux USB
- Choose Install alongside Windows
- Select unallocated space
Step 5: Verify Boot Menu
- Restart and confirm GRUB menu shows both OS options
Explore Further
- Repair bootloader if needed
Prevention & Best Practices
Never install Linux over the Windows partition.