While starting up or shutting down the system, several users face "1002" error issues that are an "Update Failed" error. It prevents you from performing your work smoothly as it makes your system too slow, and such an issue appears when you try to download a particular program or during closing or starting up your PC. There are various reasons behind this annoying issue, as the presence of harmful malware or viruses that appears online or offline.
1001 or "Updated Failed" error can freeze or crash your OS or your PC, and might restricts your tasks to run normally.
This issue may also appear if you have done improper or corrupted installation of a particular application or program, or you are not using a genuine antivirus program to scan your system.
Performing Full System Scan On PC
Even though the "Bitdefender" works internally and scans your device for any harmful viruses, it is recommended to run this built-in program manually also to fix this issue instantly.