Rest assured, a clean install won't affect your accounting data since your company file and everything it holds isn't involved at all. If the solutions above didn't fix the problem, perform a clean install of QuickBooks. Solution 3: Clean install QuickBooks Desktop Install and activate your QuickBooks Desktop.After creating the new user, sign out of Windows and sign back in as the new user.Enter the validation code, then select Next.Select Activate QuickBooks, then Begin Activation.
Open your QuickBooks Desktop, then go to Help.Select the Date & Time tab, then set the date for the current year.If they are, move on to the next solution. Check if your date and time settings are correct.Right-click the time display on the Windows taskbar, then select Adjust Date/Time.Solution 1: Check your date and time settings
If you get the error The validation code is incorrect or This service is temporarily unavailable, you'll want to perform the recommended solutions shown below to resolve this. If it's from a retail store, look for the brightly colored sticker on the original CD envelope. If you bought the software from our website, look in the purchase confirmation email you received from us. The license number and product code should match. I'm here to help fix the product license number issue upon installing QuickBooks Desktop 2020.