How to Fix Fix Windows Error 0x80070672 — Installer Patch Verification Failed on Windows
Getting Windows error code 0x80070672? Windows Installer patch verification failed or update patch signature invalid? Fix error 0x80070672 with step-by-step solutions.
Symptoms
You might be experiencing this problem if you notice:
- •Error 0x80070672 when applying Windows updates or patches
- •MSI installer fails with patch verification error
- •Software updates cannot be applied — signature verification failure
- •Windows Update reports installation failure with this error
- •Third-party application patches fail to install
- •System Center Configuration Manager (SCCM) patch deployment fails
Common Causes
- ⚠Downloaded patch file is corrupted or incomplete
- ⚠Windows Installer service has corrupted cache
- ⚠Certificate trust chain broken — patch publisher certificate not trusted
- ⚠Antivirus software interfering with patch verification process
- ⚠Windows cryptographic services malfunctioning
- ⚠System time incorrect causing certificate validation failure
Solutions
Solution 1: Clear Update Cache and Re-download
- 1Stop Windows Update service:
- 2Open Command Prompt as Administrator
- 3net stop wuauserv
- 4net stop cryptsvc
- 5net stop bits
- 6Clear the update cache:
- 7ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
- 8ren C:\Windows\System32\catroot2 catroot2.old
- 9Restart services:
- 10net start bits
- 11net start cryptsvc
- 12net start wuauserv
- 13Check for updates again: Settings → Windows Update → Check for updates
Solution 2: Repair Cryptographic Services
- 1Open Command Prompt as Administrator
- 2Re-register cryptographic DLLs:
- 3regsvr32 softpub.dll
- 4regsvr32 wintrust.dll
- 5regsvr32 initpki.dll
- 6regsvr32 mssip32.dll
- 7Verify system time is correct (certificates are time-sensitive):
- 8w32tm /resync /force
- 9Reset Windows cryptographic services:
- 10certutil -setreg chain\ChainCacheResyncFiletime @now
- 11Restart the Cryptographic Services service from Services.msc
Solution 3: Repair Windows Installer Service
- 1Open Command Prompt as Administrator
- 2Re-register Windows Installer:
- 3msiexec /unregister
- 4msiexec /regserver
- 5Run SFC to repair system files: sfc /scannow
- 6Run DISM: DISM /Online /Cleanup-Image /RestoreHealth
- 7If a specific MSI patch fails, try installing it manually:
- 8Download the patch from Microsoft Update Catalog
- 9Right-click the .msu file → "Run as Administrator"
- 10Restart the computer and check for remaining updates
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