QuickBooks Error 2000 happens when the program is unable to open or access firm files, usually as a result of corrupted files, incorrect installation, or network problems. There could be pauses or problems for users. In order to fix it, one usually needs to update QuickBooks, check the integrity of company files, or fix the installation to get smooth operation again. You can call our team of QuickBooks specialists at 1.855.738.2784.