How to Fix Fix Error 0x80070495 — Windows Servicing Stack Error on Windows
Getting error 0x80070495 during Windows Update? Servicing stack update failing? Cumulative updates not installing with this code? Fix this Windows servicing stack error.
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Main Troubleshooting Guide
How to Fix Windows Update Errors →Complete symptoms, causes, and step-by-step solutions
Symptoms
You might be experiencing this problem if you notice:
- •Windows Update fails with error 0x80070495
- •Cumulative updates download but fail to install
- •Servicing stack updates stuck in pending state
- •Windows Update history shows repeated failures with this code
- •Feature updates fail during installation phase
- •DISM operations return this error code
Common Causes
- ⚠Corrupted servicing stack components
- ⚠Windows Update component store inconsistency
- ⚠Previous interrupted update left partial state
- ⚠CBS (Component Based Servicing) manifest corruption
- ⚠Disk space insufficient for servicing operations
- ⚠Third-party security software blocking servicing
Solutions
Solution 1: Repair Servicing Stack
- 1First install the latest Servicing Stack Update (SSU) manually:
- 2Go to Microsoft Update Catalog: catalog.update.microsoft.com
- 3Search for "Servicing Stack Update" + your Windows version
- 4Download and install the latest SSU
- 5SSUs install independently of Windows Update
- 6They fix the update mechanism itself
- 7Restart PC after SSU installation
- 8Then retry Windows Update
- 9SSU must be installed before cumulative updates can succeed
Solution 2: Reset Windows Update Components
- 1CMD as Admin:
- 2net stop wuauserv
- 3net stop cryptSvc
- 4net stop bits
- 5net stop msiserver
- 6ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
- 7ren C:\Windows\System32\catroot2 catroot2.old
- 8net start wuauserv
- 9net start cryptSvc
- 10net start bits
- 11net start msiserver
- 12Then repair component store:
- 13DISM /Online /Cleanup-Image /RestoreHealth
- 14sfc /scannow
- 15Retry Windows Update
Solution 3: Fix CBS Manifest Corruption
- 1Check CBS logs for specific corruption:
- 2Open: C:\Windows\Logs\CBS\CBS.log
- 3Search for "0x80070495" to find the failing component
- 4If DISM /RestoreHealth fails:
- 5You may need a Windows ISO as repair source:
- 6DISM /Online /Cleanup-Image /RestoreHealth /Source:D:\Sources\install.wim
- 7Replace D: with your mounted ISO drive letter
- 8Ensure enough disk space: at least 20GB free on C:
- 9If all else fails:
- 10In-place upgrade (repair install) preserves apps and data
- 11Download Windows Installation Media from Microsoft
- 12Run setup.exe → Keep personal files and apps
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