How To Guide
How to Upgrade Operating Systems Safely
Major OS upgrades bring new features and security improvements but can occasionally cause compatibility issues. Proper preparation ensures a smooth upgrade.
Overview
OS upgrades differ from regular updates. They introduce significant changes that may affect software compatibility and system requirements. Always prepare before upgrading.
Step 1: Pre-Upgrade Preparation
Essential steps before starting the upgrade.
1
Check System Requirements
- Visit Microsoft or Apple's website for minimum requirements
- Windows 11: TPM 2.0, Secure Boot, 4GB RAM, 64GB storage minimum
- macOS: Check Apple's list of supported Mac models
- Use PC Health Check (Windows) to verify compatibility
- Ensure at least 30GB of free storage for the upgrade
2
Check Software Compatibility
- Make a list of critical software you use daily
- Check each vendor's website for compatibility with the new OS
- Pay special attention to antivirus, VPN, and driver software
- Older printers and scanners may not have updated drivers
- Check that your specific hardware (printers, scanners, etc.) is supported
3
Create Full Backup
- Back up all data to an external drive
- Create a system image backup (full restore capability)
- Windows: Control Panel → Backup and Restore → Create system image
- Mac: Ensure Time Machine has a current backup
- Save a list of installed applications and licence keys
- Back up browser bookmarks and saved passwords
Warning:
Do NOT upgrade without a backup. While rare, upgrades can fail and potentially result in data loss. A backup lets you roll back to exactly where you were.
Step 2: Performing the Upgrade
Run the upgrade under the right conditions.
1
Prepare for the Upgrade
- Plug in your laptop — never upgrade on battery
- Connect to reliable Wi-Fi or use ethernet
- Close all running applications
- Disable antivirus temporarily (it can interfere with upgrades)
- Plan for 1-3 hours of downtime
2
Start the Upgrade
- Windows: Settings → Windows Update → Check for updates
- Or use the Windows Installation Assistant from Microsoft's website
- Mac: System Settings → General → Software Update
- Click 'Upgrade Now' or 'Download and Install'
- The computer will restart several times — this is normal
- Do not turn off the computer during the upgrade
Step 3: Post-Upgrade Steps
Verify everything works after upgrading.
1
Verify and Update
- Check that all your files and applications are present
- Run Windows Update again to get latest patches
- Update graphics drivers from manufacturer's website
- Test printers, scanners, and other peripherals
- Open each critical application and verify it works
- Check that your antivirus is running and updated
2
Troubleshoot Issues
- If a program doesn't work, check for an updated version
- Right-click problem apps → Properties → Compatibility tab
- Try 'Run as previous Windows version' compatibility mode
- Reinstall problematic drivers from manufacturer's website
- Windows: You can roll back within 10 days (Settings → System → Recovery)
- Mac: Restore from Time Machine if critical software is incompatible
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