The QuickBooks error 12002 is an update error and can occur while you try to download and install the latest QB Desktop and payroll updates. It’s part of the 12XXX series update errors and can be a nuisance to deal with. It is generally caused by a lack of admin rights while downloading the updates, and can also occur due to incorrect date and time settings of your system. To resolve it, first verify the date and time settings of your PC, and then run QuickBooks as an administrator to download the latest updates.

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