If you just don’t see the verification message anymore because you closed Outlook several times, I recommend that you restart the computer and then start Outlook. So, let it finish and you will eventually have access to your inbox. However, the software is actually running and repairing any problem you may have with the. The verification process is so slow that it often seems the software froze. With some patience, this is how I was able to fix Outlook’s verifying data integrity issue.
Once the verification process completes, Outlook will open and the message won’t appear the next time you run the program.It may take between 5 to 20 minutes depending on your mailbox size. You will see that verifying data integrity message appear again. Under Processes tab, select OUTLOOK.exe and end the process.