Learn to find QBWin.log or QuickBooks.log files to help you determine the cause of certain errors in your QuickBooks Desktop company file.
QuickBooks Desktop logs program messages and errors, including information created by Verify, Rebuild, and Condense Data utilities, in QBWin.log.
Each QuickBooks version has its own QBWin.log. Every time you start QuickBooks, it renames the old QBWin.log file and creates a new one.
Go to the location of QBWin.log using File explorer.
Location: C:\Users\YOUR USER NAME\AppData\Local\Intuit\QuickBooks\log\XX.X\QBWin.log
In this path, XX.X represents your version of QuickBooks Desktop. For example, 18.0 is Enterprise 18.0 and 28.0 is QuickBooks 2018.
Tip: A faster way of doing this is by typing %localappdata%\Intuit\QuickBooks\log\XX.X\QBWin.log to your address bar.
For QuickBooks Desktop Pro/Premier users:
For QuickBooks Enterprise Solution users: