Featured Project
Dell Latitude E6420 — BIOS Failure, Bootloader Repair & Wi-Fi Restoration
An out-of-warranty laptop arrived unresponsive at boot, with no network on its fallback OS. End-to-end recovery using WinRE tools, command-line repair, and hardware diagnostics — returned to fully functional state.
Problem
Machine failed POST intermittently, dropped to BIOS error, and after recovery had no Wi-Fi. Bootloader corrupted; user data at risk.
Action
CMOS reset → WinRE boot → Diskpart partition repair → MBR/EFI/BCD rebuild → driver reinstall → TCP/IP stack reset.
Result
Fully restored, stable system. No data loss. Wi-Fi at full speed. Documented runbook produced for future incidents.
Project Notes · Updated
Overview — For this project, I fully restored a Dell Latitude E6420 that arrived with multiple critical failures. The laptop could not boot, the BIOS had lost its configuration, and Wi-Fi was completely disabled. I worked through hardware, firmware, and OS layers until the system was fully operational again…
bootrec /fixmbr
bootrec /fixboot
bootrec /rebuildbcdTechnical Steps
BIOS Repair
Diagnosed CMOS battery failure, reset BIOS to factory defaults, restored boot order, and verified POST stability.
Bootloader Rebuild
Used WinRE + Diskpart to repair partitions and rebuilt the boot record (MBR, EFI, BCD) via bootrec / bcdedit.
Network Recovery
Reinstalled Wi-Fi drivers via offline media, repaired the TCP/IP stack with netsh, and restored DHCP connectivity.
Validation
Verified full system health: clean boot, stable network, no event-log errors. Documented every step for future use.