Windows Update Error 0x8007370D commonly occurs when Windows is unable to install updates due to corruption in the Component Store (WinSxS) or missing/corrupted servicing files. This issue can prevent your system from downloading or applying updates properly.

To fix this error, follow these steps:

1. Repair system files
   Open Command Prompt as administrator and run:

   bash

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   sfc /scannow DISM /Online /Cleanup-Image /RestoreHealth

   This repairs corrupted system files and restores Windows Update dependencies.

2. Reset Windows Update cache
   In the same Command Prompt, enter:

   pgsql

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   net stop wuauserv net stop bits ren C:WindowsSoftwareDistribution SoftwareDistribution.old ren C:WindowsSystem32catroot2 catroot2.old net start wuauserv net start bits

   Renaming these directories forces Windows to rebuild its update cache.

3. Run Windows Update Troubleshooter
   Go to Settings → Update & Security → Troubleshoot, select Windows Update, and let the tool detect and fix update issues automatically.

4. Manually install problem updates
   If the error persists, check the update history to locate the failed update, then download and install it manually from the Microsoft Update Catalog.

5. Use in-place repair install (optional)
   As a last resort, download the Windows ISO from Microsoft and run setup while keeping your files to repair core components without a full reinstall.

For detailed walk‑through instructions, refer to the guide provided by WinChatSupport.