The document provides solutions for resolving QuickBooks error code 15101, which can occur during updates due to various reasons such as damaged Windows files or incorrect Internet settings. It outlines specific troubleshooting steps, including installing a digital signature certificate, running a reboot.bat file, adjusting Internet Explorer settings, and reinstalling QuickBooks if necessary. If the error persists, it advises seeking help from QuickBooks support experts.

2. What are the Tactics to Resolve QuickBooks Error Code 15101?
Intuit and QuickBooks experts from all around the world recommend downloading the
latest updates whenever available. The process, however, sometimes gets
interrupted with an error code – QuickBooks error 15101.
If you have received this issue while downloading the latest QuickBooks or Payroll
update, this article will help you know its causes and solution. In case you are
short of time or want an expert to perform the troubleshooting steps for you, call
our toll-free.

3. Reasons behind the QuickBooks Error 15101?
● Windows Files are damaged or corrupt
● Internet Explorer setting aren’t appropriate
● You need to update your Internet Explorer digital signature
● Firewall or Anti-Virus configuration isn’t appropriate
● You need to install Digital Signature Certificate
One or more of the reasons mentioned above may trigger QuickBooks Error 15101. Now,
before we tell you how to fix them further in this blog, we recommend you to always
create a backup of your company file so that you don’t lose any of your crucial data.

4. Solutions QuickBooks Error code 15101
Follow the below given steps in order to troubleshoot the QuickBooks error code 15101:

5. Step 1: Install Digital Signature Certificate
● Search for (x86)IntuitQuickBooks XX. XX rin C:Program Files.
● Now type QBW32.exe in the search box on the top right corner and right-click on QBW32.
● Go to Properties and then Digital Signatures.
● Select Intuit from the list and click on Details.
● Click on View Certificate and then Install Certificate.
● Keep clicking Next on the upcoming windows until you see the Finish tab.
● Click Finish
● After the import was successful. Restart your computer
● Open QuickBooks Desktop and try to download the updates again.

7. Step 2: Run reboot.bat
● Perform this step to re-register .DLL and .OCX and other product files in Windows.
● Close QuickBooks.
● Right-click on QuickBooks icon and select Properties.
● Under Shortcut tab, tap on Open File Location.
● Find reboot.bat or reboot file in the list.
● Do a right-click on reboot.bat and select Run as admin.
● Click Yes to allow user account permission window.
● CMD window will pop up and different files will start scrolling.
● Restart your computer
● Open QuickBooks Desktop.
● Click Install Now if you are prompted to install the latest updates (if not, download the updates
manually).

9. Step 3: Check Internet Explorer Settings
● Open Run window (press Windows and R keys) on the keyboard and type in INETCPL.CPL and
click OK.
● Select the General tab, click on Delete and select Temporary Internet Files and Website Files.
● Press Delete again.
● Click on the Connections tab and then on LAN settings.
● Detect settings and press OK.
● Click on the Advanced tab, go to the security section and make sure TLS 1.2 is checked and
TLS 1.0 and TLS 1.1 unchecked.

12. Step 4: Uninstall and Reinstall QuickBooks Desktop
If the QuickBooks Error 15101 error exists even after performing the three steps described
above in this article, use Clean Install Tool to uninstall and reinstall QuickBooks Desktop.

13. Winding up!
If you have followed the troubleshooting steps provided as provided above, you are very
likely to fix QuickBooks Error 15101 on your own. In case the error persists or reappears,
you can speak to our 24/7 QuickBooks error support experts by dialing i.e. 1-800-615-
2347.

14. Source: https://www.apsense.com/article/how-to-resolve-quickbooks-payroll-error-
15101.html