Update file-sync-troubleshoot.md

Author: codefinite-vri

support/azure/azure-storage/files/file-sync/file-sync-troubleshoot.md

@@ -104,7 +104,7 @@ After installing or upgrading the Azure File Sync agent (v17.3 or later), you ma
   ```
 
 - ServerRegistration.exe or AfsUpdater.exe fails to open
-- Agent Installation fails and installation log shows error code 0x80c84111 with message:
+- Agent installation fails and installation log shows error code 0x80c84111 with message:
 
   ```
   Exception occurred while configuring MitigationRedirection policy. This could indicate that required windows updates not installed on the computer.