: Open Windows Services ( services.msc ), locate Print Spooler , click Restart , and wake up the printer physically before running the diagnostic tool. Firmware Upgrade Interrupted
Right-click the .exe file, navigate to Properties , and verify the Digital Signatures tab. If the tab is missing or the signer is listed as "Unknown," exercise extreme caution. Spd-v1.0.4.28.exe
Because this tool handles administrative access to security systems, you should follow these precautions: Source Verification: : Open Windows Services ( services