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How to Clean Install Windows 11 on Your PC

Setting up a new computer and need to install an OS? Or perhaps persistent system errors have pushed you toward a complete system reset? A fresh Windows 11 installation often resolves most software-related problems, but the process requires careful preparation to avoid data loss or boot failures.

This walkthrough will guide you through creating installation media, configuring BIOS settings, and managing post-installation driver setups. Handle with caution: this procedure will erase existing data permanently.

Important: Always back up critical files before proceeding. Technical choices described here reflect the author’s experience, and system modifications carry inherent risks.

Pre-Installation Checklist

  • Create full backups of personal files beyond standard cloud storage – consider physical drives for redundancy
  • Download motherboard firmware, network adapters, and peripheral drivers directly from manufacturers’ support portals
  • Obtain USB installation media (8GB minimum) and the latest Windows 11 ISO
  • Use Rufus to format drives with UEFI/GPT configuration for modern hardware compatibility
  • Document your license key unless using OEM pre-activation
The Rufus utility

Media Preparation Steps:

  1. Insert USB drive and launch Rufus
  2. Select FAT32 formatting with GPT partitioning
  3. Load ISO file using non-Quick Format option
  4. Label driver directories clearly after flash drive creation

OS Installation Procedure

Windows installation UI
  1. Access BIOS/UEFI via DEL/F2 during boot
  2. Enable TPM 2.0 and Secure Boot under Security tab
  3. Prioritize USB boot using Boot Order settings
  4. Launch installer and select Custom Installation
  5. Delete existing partitions using Disk Cleanup tool
  6. Allow auto-reboot cycles without removing installation media

Post-Installation Steps

  • Access Device Manager to identify missing drivers
  • Install chipset utilities first, followed by network controllers
  • Rebuild software firewall and update Windows through Settings
  • Perform hardware validation via manufacturer diagnostics tools