Cannot open company file

Thanks for letting me know, romar.

I'm here to help you get this sorted out to keep your QuickBooks running and so you can get back to your business.

Let's perform some troubleshooting steps to resolve the problems when opening your Company File. Please follow the steps below to fix this. 

Before troubleshooting the company file, make sure that QuickBooks Desktop is updated to the latest release.

1. Press and hold the Ctrl key.
2. Double-click you QuickBooks program icon.
3. Hold the Ctrl key until you have No Company Open window.

Right after, verify that only one computer is hosting your company file. Turn off hosting in all computers aside from the server. 

Here's how: 

1. At the top menu bar, click File.
2. Select Utilities.
3. Click Stop hosting multi-user access. Quick tip: If you see anything other than Stop hosting multi-user access, it means hosting is currently turned off on that computer.
4. Make sure that your QuickBooks Desktop Program is not corrupted.

If these steps fail to resolve your issue, you can check this article for more troubleshooting steps: Resolve Problems Opening QuickBooks Desktop or your Company File.

That'll do it! Don't hesitate to leave a comment below if you have other questions about opening company file. I'll be around to help. 

This error popups when there's a misconfiguration on the Internet Explorer security settings, firewall settings or system date and time settings. To fix it, follow the solutions below:

1. Run QuickBooks as Administrator. Right-click the QuickBooks icon on your Desktop and select Run as Administrator.
2. Verify the system date and time settings. Click the time display on your system tray and select Change date and time settings. Then, make sure the date and time is correct.
3. Add Windows permissions to QuickBooks installation folders.
4. Verify the Microsoft Internet Explorer settings.
5. Check your third-party firewall.

Regards,

Adrian

QuickBooks Hosting expert - Apps4Rent