Situation: You may receive this message when you attempt to open an MYOB BusinessBasics company file. While it's unlikely there are actually 10 company files open in your MYOB BusinessBasics folder, this message indicates there are 10 lock files in the folder, and only 10 lock files can be created in one folder.
Solution: The 10 lock files must be removed manually. To remove the lock files, find the folder that contains your MYOB BusinessBasics company file. (Use Windows Explorer.) Double-click the folder to display the contents of the folder. Locate the files named lock0001.flk through lock0010.flk and delete them. You should then be able to open the company file.
This error indicates that the company file has been closed incorrectly 10 times. Improper exits- using ctrl+alt+delete, mistakenly turning off your while changes are being saved in your company file or experiencing power failures-can damage a company file. We suggest that you use the MYOB BusinessBasics Data Optimization Assistant to optimize your file. You can find the Optimization Assistant in the MYOB BusinessBasics folder that was created in the Programs folder of your Start menu when you installed MYOB.
If you're able to optimize the file without errors, we recommend that you then use the MYOB BusinessBasics Data Verification Utility to be sure your company file is in its "healthiest" form. You can find the Verify Company File command under the MYOB BusinessBasics File menu.