Skip-tpm-check-on-dynamic-update.cmd May 2026

@echo off title Bypass TPM / Secure Boot for Dynamic Update echo Stopping Windows Update services... net stop wuauserv >nul 2>&1 net stop bits >nul 2>&1 echo Removing existing compatibility database... del /f /q %SystemRoot%\System32\appraiserres.dll >nul 2>&1 del /f /q %SystemRoot%\System32\appraiser.dll >nul 2>&1 echo Creating empty stub to bypass TPM check... type nul > %SystemRoot%\System32\appraiserres.dll type nul > %SystemRoot%\System32\appraiser.dll echo Restarting services... net start wuauserv >nul 2>&1 net start bits >nul 2>&1 skip-tpm-check-on-dynamic-update.cmd

echo Done. Run Windows Update again. pause

Verify update completes; validate BitLocker access; verify system stability and driver functionality.

Capture telemetry and error logs (SetupDiag, Windows Update logs).

For more recent versions, the script uses a combination of registry modifications and environment variables that tell the Windows Setup engine to ignore the Dynamic Update server:

If running a batch file seems risky, consider these alternatives: @echo off title Bypass TPM / Secure Boot

| Method | Difficulty | Preserves Data | TPM Bypass | |--------|------------|----------------|-------------| | Rufus (3.18+) | Easy | No (clean install) | Yes (removes TPM/Secure Boot/RAM checks) | | Flyby11 (by AveYo) | Easy | Yes | Yes | | Manual Registry (during upgrade) | Medium | Yes | Partial (Fails on Dynamic Update) | | Replace appraiserres.dll with 0-byte file | Hard | Yes | Yes (but must disable network) |

Rufus is arguably the safer, more permanent solution for clean installs. However, for in-place upgrades preserving apps and data, skip-tpm-check-on-dynamic-update.cmd remains the most elegant real-time patcher. For more recent versions, the script uses a