Error 0x8007007f ("Something went wrong") ตอน Upgrade Win11 ด้วย Installation Assistant สาเหตุหลัก: Permission, AV, GPU Drivers, Disk Space, Corrupt System Files
Quick Fixes
- Restart PC → Retry
- Disconnect External Devices (Printers, USB, Headphones)
- Disable/Uninstall Third-party AV
- Free Disk Space: Minimum 16GB (แนะนำ 32GB+) บน C:
- Stable Internet, No VPN
- Uninstall Old/Unneeded Software
เช็ค System Requirements
- CPU: 1GHz+ 2+ Cores 64-bit
- RAM: 4GB+
- Storage: 64GB+
- UEFI Secure Boot
- TPM 2.0
- GPU: DX12+ WDDM 2.0
- Display: 720p 9"+ 8-bit
ใช้ PC Health Check Tool เช็ค Compatibility
Run as Administrator
Close Error → Reboot → Right-click Assistant → Run as Administrator → Yes (UAC) → Follow Steps
Disable Third-party AV
appwiz.cpl → Uninstall AV → Reboot → Run Assistant as Admin
Free Up Space on C:
Disk Cleanup / Comet / Cleanmgr+ / Delete Duplicates / Move to External/Cloud
Update Graphics Drivers
devmgmt.msc → Display Adapters → Uninstall GPU Driver → Reboot → Download Latest from NVIDIA/AMD/Intel → Install → Reboot → Retry
SFC & DISM Scan
cmd (Admin) → sfc /scannow → Dism /Online /Cleanup-Image /RestoreHealth → Relaunch Assistant
ใช้ Windows 11 ISO แทน
Mount ISO → Run setup.exe (Bypass Assistant)
สรุป Best Practice
- Run Assistant as Admin + UAC On
- Latest Drivers ทั้งหมด
- Disk Space พอ
- Reboot & Retry
- ISO Setup.exe เป็นทางเลือกสุดท้าย
ไม่ได้ → ติดต่อ Microsoft Support
