Error 1321 is an installation error in QB and appears as “The installer has insufficient privileges to modify the file C:\Program Files\Intuit\QuickBooks\sdkeventl.DLL”, or “The installer has insufficient privileges to modify the file”. This discussion shall unfold the main causes of QuickBooks Error code 1321 and the strategies to fix it on your system. So, keep reading it all to its conclusion.

The major reasons for this update error1321 in QuickBooks are:

Cause 1: File updating might be petty faster in comparison to file copy process.

Cause 2: Installer being corrupted

Cause 3: Antivirus or other security program may be preventing the update.

Cause 4: Insufficient permission to run the update