This error of invalid product Key is usually encountered by the user of Quickbooks during the process of opening or registering into the software named Quickbooks Desktop POS 2013.Following error of invalid product number/key which is error 176109 ,is being experienced because of the following issues:-
Here are some simple solution in order to get rid of this error:-Solution 1: By deleting the contents which are stored in folder named as entitlement client in your computer.1- You have to use your windows explorer to open c:drive of your windows which contains a folder named as Program Data.Inside that folder you will get another folder named as Intuit and again open a folder named Entitlement Client ,And now an another folder named as V8
2- When you are inside the folder named as / V8 , on your keyboard just press q key combination “CTRL+A” by which all the files in the folder will get selected , and then delete those files by pressing “Delete “key on your keyboard while all the files are selected.
3- When the process confirmation pop up is displayed in your screen click on yes option to continue the deletion process of files.
4- After you delete all the contained files in V8 folder, you have to relaunch the software Quickbooks Point and now you will be able to register into the software Quickbooks point of sale.
-If the error is not yet resolved by this solution1 continue to follow second solution in order to resolve the issue.
Solution 2: By the process of renaming the -WS Activity file in your computer.1- By using your windows explorer you have to navigate and open an folder named as Drive-C / Program Data and then again open a folder named as Intuit and continue to open a folder namely Quickbooks POS XX in which you have to open another folder named as Ini2-When you are inside the folder INI right click in the folder named as -WSActivity and from the displayed options select the Rename option.
3- When rename process is on rename the folder as -OLDWSActivity by clicking anywhere on your screen after renaming to save.
4-Now You Close The displayed window and delete the files of entitlement again by following the first solution.
5- Now you have to relaunch the software named QuickBooks POS and now you will be able to register into the software.
Solution 3: By performing Clean re-installationIf your issue is not yet resolved by using provided solution please contact the Intuit Quickbooks Support to get help for clean rei-installation.
These blogs are written by QuickBooks ProAdvisors