QuickBooks Desktop is a popular accounting software used by businesses to manage their financial transactions. Error 15102 in QuickBooks Desktop typically occurs when there is an issue with downloading payroll updates or updating QuickBooks Desktop. Here are some steps you can follow to repair QuickBooks Desktop update error 15102:

Verify the download location: Make sure that the download location for payroll updates in QuickBooks is correct. Go to Employees > Get Payroll Updates > Download Entire Update. Make sure the download location listed in the window matches the actual location where you want to download the update. If not, click on Change and specify the correct location.

Check the mapping of the download location: Ensure that the download location is properly mapped in QuickBooks Desktop. Go to Edit > Preferences > Payroll & Employees > Company Preferences > Download Location. Make sure the download location matches the actual location on your computer where you want to download the payroll updates. If not, click on Browse and select the correct location.

Check the status of the QuickBooks Desktop subscription: Make sure that your QuickBooks Desktop subscription is active and up-to-date. Go to Help > Update QuickBooks > Update Now. If there are any available updates, install them. If your subscription has expired, renew it to ensure you can download payroll updates.

Verify the settings of the firewall and antivirus: Firewall or antivirus settings can sometimes block QuickBooks from downloading updates. Make sure that your firewall and antivirus settings are not blocking QuickBooks. You may need to add exceptions or exclusions for QuickBooks in your firewall or antivirus settings. Refer to your firewall or antivirus documentation for instructions on how to do this.

Check the file location and permissions: Verify that the file location where you are trying to download the payroll updates has the correct permissions. Make sure that the folder where you are trying to download the updates has read and write permissions, and that QuickBooks has the necessary rights to access that folder. You may need to consult with your IT professional to ensure the correct file permissions are set.

Update QuickBooks Desktop to the latest release: Ensure that you are using the latest version of QuickBooks Desktop and that it is updated to the latest release. Go to Help > Update QuickBooks > Update Now to check for updates and install them if available.

Reset QuickBooks Desktop update settings: If none of the above steps work, you can try resetting the QuickBooks Desktop update settings. Go to Help > Reset Update Settings and click on the Reset button. Then try downloading the payroll updates again.

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