QuickBooks Desktop Series Error 12000: Troubleshooting Guide
                     Guide on QuickBooks Desktop Series 
Error 12000
Are you facing an issue with the application where you encounter 
QuickBooks Desktop Series Error 12000? If you want to know the 
problem's resolution, this blog is a must-read. The content here stresses 
the causes of and troubleshooting for the error series. Now and then, 
QuickBooks Desktop has trouble connecting to the internet, which might 
cause issues while updating. This 12000 error sequence may be caused by 
an antivirus or firewall product interfering with the update or by a browser 
and security settings that are wrongly set up.
There are several measures you can take to repair the problem. Examining 
the Internet Explorer settings is one of the steps in the blog post below that 
explains how to fix the issue. Continue reading with attention through to 
the finish.

What Causes QB Desktop's 12-Series-
Related Error?
The following are the typical causes of the 12000 series errors:
• QuickBooks cannot connect to the Intuit server due to a network connectivity issue.
• A poor or inconsistent connection or incorrect network settings could be the issue.
• The update could be blocked by corruption in the firm, QB files, tax table, or QB support.
• Because the update application is damaged or corrupted, QuickBooks is unable to get 
the update.
• QuickBooks cannot verify the download's security, and Windows views it as hazardous.
• An antivirus application or the Windows firewall configuration may restrict QuickBooks's 
ability to connect to the internet or server.
• There can be issues with the browser's internet settings, or Microsoft Edge or Internet 
Explorer might not be set up properly as the default browser.
The Best Working Solution for 
Desktop 12000 Error Series
The steps listed below make it simple to fix QB error 12000 series. Be 
mindful while following them.
Resolution: Look Through Internet 
Explorer's Settings
Occasionally, alterations made to Internet Explorer's settings can lead to 
issues with updates downloading. To examine your Internet Explorer's 
settings:
1. Open Internet Explorer once QuickBooks Desktop has been closed.
2. After selecting Tools, pick Internet Options.
Note: If you cannot find Tools, press Alt on the keyboard. 
3. Select the Globe symbol on the Security tab to ensure the security level 
is not greater than medium-high.
4. On the Connections tab, select Never Dial a Connection if you don't use 
the system's dial-up node (DUN); if you do, specify the relevant ISP.
5. Press OK.
6. First ensure that the automatically detected settings are selected by 
selecting LAN Settings, and then make sure the Use a Proxy Server 
checkbox is cleared.
7. If you wish to use a Proxy Server, completely record the IP and port.
8. If the port isn't 80, leave the Use a Proxy Server option checked.
9. If the port is 80, you can uncheck the option and click OK for testing.
10.After selecting Restore Advanced Settings on the Advanced screen, 
select Use TLS 1.2 under Settings. (Your version of Internet Explorer 
may not have these options.)
11.Press OK.
12.Restart your PC after you've closed Internet Explorer.
13.Upon opening QuickBooks Desktop, you can attempt the update once 
more.
You must look at the security settings to see if the issues persist.
The blog provides readers with more information about QuickBooks 
Desktop series error 12000, including its various errors, causes, and 
solutions.