Other questions

Thanks for joining us here in the Community, @Quasimetallica.

QuickBooks error 15243 will typically occur when Intuit FCS Service is disabled.. These are possibly caused by the following reasons:

• A corrupt download/ incomplete QuickBooks installation.
• Corruption in the Windows registry because of the recent QuickBooks software change, probably an installation or Uninstalling it.
• Intuit FCS Service is not running.
• Anti-Virus is blocking access to download the latest file.

There are various solutions to resolve this issue. Before doing so, make sure to create a backup copy of your company file to prevent data loss.

After that, let's start with enabling the QuickBooks Desktop File Copy Service(FCS).

To do that:

1. Tap on Windows+R keys together from keyboard to open Run window.
2. Type COMPMGMT.MSC into the Run command and hit on OK.
3. Now Computer Management Window will open then press on Services and Applications.
4. Then tick on Services.
5. Now scroll the cursor down, until you found Intuit QuickBooks FCS and make a double click on it.
6. Click on Startup type and choose Manual.
7. Then click Apply.
8. Press on OK.

Once done, re-validate the payroll's service key to refresh the connection.

Here's how:

1. Go to Employees at the top menu bar.
2. Choose My Payroll Service.
3. Then select Activate Service Key. 
4. Under the Service Keys window highlight the current payroll and select Edit.
5. Click on Next until finish comes up.

Please see screenshots below for visual reference:

If the issue persists after trying these steps, I recommend repairing your QuickBooks and run the latest tax table updates afterward. Here are the links that you can visit on how to perform the process:

• Repair your QuickBooks Desktop for Windows
• Get the latest payroll tax table update

You've got me here to help if you have any other questions. Just notify me by dropping a reply below. Have a Merry Christmas, Quasimetallica!