Why I am getting QuickBooks Error 121?

It is quite tough to manage this situation, we have bunch of routine tasks to be completed. QuickBooks Error 121 has set our day on a pause. Having searched on the internet and asked my IT person, I am not able to figure out the causes of QuickBooks Error 121 in my QuickBooks Point of Sale. I am looking for the information to help me get rid of QB error 121. I am moderately tech savvy, the easy steps to resolve error 121 in QuickBooks would be highly appreciated.

Asked on April 11, 2019 in Error Messages.
1 Answer(s)

Hi Larry,

Thanks for your post. We are extremely sorry for the inconveniences which QuickBooks Error 121 is causing. I am going to provide you the information to resolve and how to fix Error 121 in QuickBooks on your own. You can keep this knowledge base tagged in your records. You will freely cope up with QB Error 121 now and if that ever occurs you in future. Several factors are causes of QuickBooks error 121, Knowing the causes will align your troubleshooting efforts fast and accurate.

Causes of QuickBooks Error 121

  • You are not signed in with administrative rights.
  • POS is unable to write registry values for automatic updates.
  • Syncing issues with POS Database.
  • Missing or incompatible windows components required for running POS.
  • POS user profile is corrupt.


Name of Error: QuickBooks Error 121

Error Code: QuickBooks Error Code 121

Description: Error 121 Permission denied, you do not have permission to select from “timeouts”

Please open the hyperlink below for details information to resolve QuickBooks Error 121. The link has all the solutions and steps to get rid of the errors. You are recommended to perform the steps in the order placed. The troubleshooting must be carried out if you are fairly knowledgeable with the IT stuff or you can have our QuickBooks Certified Technician to help you fix QB Error 121.


FOR SUPPORT CALL @ 877-263-2742

Answered on April 12, 2019.

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