How to run a Quickbooks Verify:
To run Verify, click the File
menu again > click Utilities > click "Verify Data" and then
select the correct .QBW file from the computer or server
drives.
After a file is selected the utility
will run and report on the data integrity of the file. If there are
any problems with the data QB will report "Data has lost
integrity".
QB will report "QuickBooks detected no
problems with your data" if the data are not corrupt. In this case,
other problems on the network, PCs, or servers involved may have
caused the error.