🪟 Component Store Error

Fix Update Error 0x8007370d

📅 Updated: Jan 12, 2026 ⏱️ 30-90 min to fix ✅ 82% Success Rate

🚀 Quick Fix Summary

Problem Type: Windows Update Error 0x8007370d (ERROR_SXS_IDENTITY_PARSE_ERROR)

Common Symptoms: "Some updates were not installed - Error 0x8007370d", "Component Store corruption detected", update fails with ERROR_SXS_IDENTITY_PARSE_ERROR, Windows Update stuck or rolling back, .NET Framework updates failing

Primary Causes: Corrupted Component-Based Servicing (CBS) store (40%), damaged Windows SxS (Side-by-Side) manifest files (30%), .NET Framework corruption (15%), system file damage (10%), pending updates conflicts (5%)

Time to Fix: 30-90 minutes

Difficulty: Moderate to Advanced

Success Rate: 82% with DISM component store repair

Windows Update error 0x8007370d with technical description ERROR_SXS_IDENTITY_PARSE_ERROR is a critical Component-Based Servicing (CBS) and Side-by-Side (SxS) assembly corruption issue that prevents Windows from parsing component manifests during update installation—specifically occurring when Windows Update attempts to install updates but encounters corrupted XML manifest files in the WinSxS folder (C:\Windows\WinSxS) that define component identities, dependencies, and versioning information essential for proper Windows Update execution, causing update installation to fail with "Some updates were not installed" messages displaying 0x8007370d error code in Windows Update history, preventing not only current cumulative updates but often blocking .NET Framework updates, optional updates, and even future Windows feature updates since the corrupted Component Store prevents proper update staging and installation, leaving systems vulnerable to security exploits, missing critical bug fixes, and unable to progress to newer Windows versions due to the foundational servicing infrastructure being damaged beyond standard repair capabilities requiring deep Component Store restoration.

Error 0x8007370d (ERROR_SXS_IDENTITY_PARSE_ERROR) stems from severe Windows component corruption with the Component-Based Servicing (CBS) store containing damaged or inconsistent component manifest entries being the primary cause (40% of cases)—where the CBS.log file located in C:\Windows\Logs\CBS\ shows "Failed to parse" or "Manifest Parse Error" entries indicating XML manifest files cannot be interpreted by Windows Update service—followed by corrupted Side-by-Side (SxS) assembly manifests in the WinSxS folder where dependency resolution fails when Windows attempts to determine which component versions to install during updates (30%), .NET Framework Component Store corruption where .NET assemblies in WinSxS become damaged preventing .NET update installations which then cascade to block other updates dependent on .NET (15%), general system file corruption including update engine DLLs (wuaueng.dll, wuapi.dll) or CBS DLLs affecting manifest parsing capabilities (10%), and pending failed updates leaving partial component registrations in inconsistent states blocking new update installations due to unresolved dependencies (5%). This comprehensive guide provides 8 advanced methods to fix Windows Update error 0x8007370d: running DISM with RestoreHealth to repair Component Store from Microsoft servers, using System Update Readiness Tool for Windows 7/8, manually resetting WinSxS permissions and rebuilding component registrations, running CheckSUR scan to detect and log component corruption, performing .NET Framework repair or reinstallation, using DISM with cleanup-image to remove superseded components, executing in-place upgrade repair to rebuild entire Component Store, and as last resort performing clean Windows installation—ensuring you can restore functioning Component-Based Servicing infrastructure, successfully install Windows Updates and .NET Framework updates, eliminate persistent 0x8007370d errors, and maintain long-term system update capability essential for security and stability.

Method 1: Run DISM RestoreHealth (Primary Fix)

DISM RestoreHealth repairs corrupted Component Store by downloading good files from Microsoft servers. Most effective fix for 0x8007370d.

Running DISM to fix Component Store corruption
  1. Open Command Prompt as Administrator
  2. Check Component Store health first:
    DISM /Online /Cleanup-Image /CheckHealth
  3. Quick check—takes 1-2 minutes
  4. If reports "component store is repairable":
  5. Scan for corruption:
    DISM /Online /Cleanup-Image /ScanHealth
  6. Deep scan—takes 5-15 minutes
  7. Repair Component Store:
    DISM /Online /Cleanup-Image /RestoreHealth
  8. Downloads and replaces corrupted components from Windows Update
  9. Takes 15-45 minutes depending on internet speed and corruption level
  10. Progress shows percentage and "The restore operation completed successfully"
  11. After DISM completes, run SFC:
    sfc /scannow
  12. Wait 20-45 minutes
  13. SFC repairs any remaining system file corruption
  14. Restart computer
  15. Try Windows Update again

If DISM Fails to Download (No Internet or Error):

  1. Use Windows installation media (USB/ISO) as repair source
  2. Mount ISO or insert USB
  3. Note drive letter (e.g., D:)
  4. Repair using offline source:
    DISM /Online /Cleanup-Image /RestoreHealth /Source:D:\Sources\install.wim:1 /LimitAccess
  5. Replace D: with your media drive letter
  6. DISM uses local files instead of downloading

Method 2: Download and Run System Update Readiness Tool

Microsoft's official Component Store repair tool for Windows 7/8. For Windows 10/11, use DISM (Method 1).

Running System Update Readiness Tool

For Windows 7/8 Users:

  1. Visit Microsoft Download Center
  2. Search "System Update Readiness Tool" for your Windows version
  3. Download and run the tool
  4. Tool scans Component Store—takes 15-30 minutes
  5. Automatically repairs detected corruption
  6. Creates log: C:\Windows\Logs\CBS\CheckSUR.log
  7. After completion, restart computer
  8. Try Windows Update

Method 3: Reset WinSxS Permissions and Component Registrations

Incorrect permissions on WinSxS folder prevent manifest parsing causing 0x8007370d. Resetting restores access.

Resetting WinSxS folder permissions
  1. Open Command Prompt as Administrator
  2. Take ownership of WinSxS folder:
    takeown /f C:\Windows\WinSxS /r /d y
  3. Takes 10-20 minutes—displays each file as ownership transferred
  4. Reset permissions to default:
    icacls C:\Windows\WinSxS /reset /T
  5. Takes 15-30 minutes—resets ACLs on all WinSxS files
  6. Re-register component manifests:
    DISM /Online /Cleanup-Image /StartComponentCleanup
  7. Cleans up superseded components
  8. Re-register Windows Update components:
    regsvr32 wuaueng.dll
    regsvr32 wuapi.dll
    regsvr32 wups.dll
    regsvr32 wuwebv.dll
  9. Each should show "DllRegisterServer succeeded"
  10. Restart computer
  11. Try Windows Update

Method 4: Check CBS.log for Specific Corruption

CBS.log contains detailed error information about which manifests failed parsing. Helps identify specific corruption.

Analyzing CBS.log for component corruption
  1. Open Command Prompt as Administrator
  2. Extract relevant errors from CBS.log:
    findstr /c:"[SR]" %windir%\Logs\CBS\CBS.log >"%userprofile%\Desktop\CBS_Errors.txt"
  3. Creates CBS_Errors.txt on Desktop with filtered errors
  4. Open CBS_Errors.txt in Notepad
  5. Look for lines containing:
    • "Failed to parse"
    • "Manifest Parse Error"
    • "ERROR_SXS_IDENTITY_PARSE_ERROR"
    • "Component Store corruption"
  6. Note specific component names mentioned in errors
  7. If .NET Framework components appear frequently: Proceed to Method 5
  8. If many different components corrupted: Proceed to Method 7 (in-place upgrade)

Method 5: Repair or Reinstall .NET Framework

.NET Framework Component Store corruption causes 0x8007370d when installing .NET updates. Repair tool fixes .NET components.

Repairing .NET Framework to fix component errors
  1. Download .NET Framework Repair Tool:
    • Visit Microsoft Download Center
    • Search ".NET Framework Repair Tool"
    • Download NetFxRepairTool.exe
  2. Run NetFxRepairTool.exe as Administrator
  3. Accept license terms
  4. Tool detects installed .NET versions
  5. Click Next
  6. Tool scans for .NET corruption—takes 5-10 minutes
  7. If issues found: Automatically repairs .NET components
  8. After completion: "Repair completed successfully"
  9. Restart computer
  10. Try Windows Update

Manual .NET Framework Reinstallation:

  1. Settings → Apps → Optional features
  2. Click View features
  3. Search ".NET Framework"
  4. Install .NET Framework 3.5 and 4.8 if not present
  5. Restart computer

Method 6: Run DISM Component Cleanup

Superseded components left in WinSxS cause conflicts and parsing errors. Cleanup removes obsolete components.

Running DISM component cleanup
  1. Open Command Prompt as Administrator
  2. Analyze component cleanup potential:
    DISM /Online /Cleanup-Image /AnalyzeComponentStore
  3. Shows size of WinSxS and reclaimable space
  4. Perform component cleanup:
    DISM /Online /Cleanup-Image /StartComponentCleanup
  5. Removes superseded component versions
  6. Takes 10-30 minutes
  7. Aggressive cleanup (removes backup components - use cautiously):
    DISM /Online /Cleanup-Image /StartComponentCleanup /ResetBase
  8. Permanently removes superseded components—frees more space but prevents uninstalling recent updates
  9. After cleanup, run RestoreHealth again:
  10. DISM /Online /Cleanup-Image /RestoreHealth
  11. Restart computer
  12. Try Windows Update

Method 7: Perform In-Place Upgrade Repair

Rebuilds entire Windows Component Store while keeping files and apps. Most comprehensive repair for severe 0x8007370d.

Performing in-place upgrade to repair Component Store
  1. Download Windows Media Creation Tool:
    • Visit microsoft.com/software-download
    • Download Media Creation Tool for Windows 10 or 11
  2. Run Media Creation Tool as Administrator
  3. Accept license terms
  4. Select Upgrade this PC now
  5. Tool downloads latest Windows version—takes 30-90 minutes
  6. After download: "Ready to install"
  7. Critical: Click Change what to keep
  8. Select Keep personal files and apps
  9. Click Next
  10. Click Install
  11. In-place upgrade begins—takes 60-120 minutes
  12. PC restarts multiple times
  13. After completion: Windows fully repaired with new Component Store
  14. All files, apps, settings preserved
  15. Windows Update functions restored

Method 8: Clean Windows Installation (Last Resort)

If all methods fail, clean installation guaranteed to fix Component Store but requires reinstalling apps.

  1. ⚠️ Backup all data first!
  2. Create Windows installation USB with Media Creation Tool
  3. Boot from USB
  4. Select language, time → Next
  5. Install now
  6. Enter product key or I don't have a product key
  7. Select Windows edition matching your license
  8. Accept license → Next
  9. Select Custom: Install Windows only (advanced)
  10. Select partition with current Windows
  11. Click Format (deletes everything) or Delete partition
  12. Select unallocated space → Next
  13. Windows installs fresh—takes 20-45 minutes
  14. After installation: Windows Update works perfectly with new Component Store

💡 Pro Tip: Prevent Future 0x8007370d Errors

Regular DISM maintenance: Monthly run DISM /Online /Cleanup-Image /RestoreHealth to catch corruption early. Install updates promptly: Deferring updates months increases Component Store conflicts—install cumulative updates monthly. Avoid third-party "Windows cleanup" tools: Tools claiming to clean WinSxS often corrupt component manifests causing 0x8007370d—use only built-in DISM cleanup. Keep adequate disk space: Component Store requires 10-15 GB—tight space causes corruption during updates. Check CBS.log after failed updates: Review C:\Windows\Logs\CBS\CBS.log immediately after update failures to identify specific corruption before it spreads. Disable automatic .NET updates if problematic: If .NET updates consistently fail, hide them in Windows Update until Component Store fully repaired.

Frequently Asked Questions

Q: DISM RestoreHealth completes but still getting 0x8007370d. What's wrong?

A: DISM RestoreHealth repairs downloadable components but can't fix deep CBS database corruption or permission issues. Next steps: (1) Reset WinSxS permissions (Method 3)—DISM repaired files but can't access them due to wrong ACLs, (2) Check CBS.log (Method 4)—identify if .NET specific or general corruption, (3) If .NET errors prominent, run .NET Repair Tool (Method 5)—DISM doesn't repair .NET-specific issues, (4) Perform in-place upgrade (Method 7)—rebuilds CBS database from scratch, (5) Check disk for errors: chkdsk C: /f /r—disk corruption may be re-corrupting repaired components.

Q: Can I delete WinSxS folder to fix 0x8007370d and free disk space?

A: Absolutely not! Never delete WinSxS folder! WinSxS is Windows Component Store—deleting it renders Windows completely unbootable, requiring clean installation. WinSxS appears large (10-20 GB) but uses hard links—actual space much smaller. Safe cleanup: Use DISM component cleanup (Method 6) which intelligently removes superseded components without breaking Windows. DISM cleanup can free 2-5 GB safely. Manual deletion catastrophic—recovery impossible without reinstallation.

Q: Error 0x8007370d only occurs with .NET Framework updates. Other updates install fine. Why?

A: .NET Framework has separate component manifests in WinSxS—.NET corruption isolated from Windows system components. Other updates success indicates general Component Store healthy; .NET components specifically damaged. Fix: Run .NET Framework Repair Tool (Method 5)—targets .NET assemblies only, or uninstall all .NET versions via Apps → Optional features, restart, reinstall fresh .NET Framework versions. If repair fails, in-place upgrade (Method 7) replaces all .NET components.

Q: After running DISM cleanup with /ResetBase, now getting different errors. Did I break something?

A: /ResetBase permanently deletes component backups—if components still corrupted when ResetBase run, corruption becomes permanent with no backup to restore from. Mistake: running /ResetBase before /RestoreHealth. Correct order: (1) DISM /RestoreHealth first to repair corruption, (2) Verify updates install successfully, (3) Then DISM /StartComponentCleanup /ResetBase to reclaim space. If already ran ResetBase prematurely: In-place upgrade (Method 7) only solution—rebuilds entire Component Store including backups.

Q: CBS.log shows thousands of errors. How do I know which are related to 0x8007370d?

A: CBS.log contains all Component-Based Servicing operations—many entries are informational not errors. Focus on: (1) Lines containing "0x8007370d" or "ERROR_SXS_IDENTITY_PARSE_ERROR"—directly related, (2) Lines with "[SR] Cannot repair"—indicates SFC found corruption DISM must fix, (3) Lines mentioning "Manifest Parse Error" or "Failed to parse"—root cause of 0x8007370d, (4) Component names appearing repeatedly in errors—identifies specific corrupted manifests. Use findstr to filter: findstr /i /c:"failed to parse" /c:"0x8007370d" %windir%\Logs\CBS\CBS.log >filtered.txt. Most relevant errors appear at bottom of log (most recent operations).