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Fix Windows Defender Error 0x80070643 – Version Mismatch - Fix Permission Denied When Clearing Windows Security Cache-Fix Windows Search Proxy Errors: Codes and Solutions

Updated 2026-06-13 18:55:26cloud-software

Fix Windows Defender Error 0x80070643 – Version Mismatch - Fix Permission Denied When Clearing Windows Security Cache-Fix Windows Search Proxy Errors: Codes and Solutions

Prepare

Execute

Validate

Document

Operational follow-up

Record the exact option, command, or setting that changed the result.
Keep a rollback note if the workflow affects shared files or team settings.

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