QuickBooks users have been lately receiving Error C=343 when trying to open their company files. This error obstructs any financing operations on QuickBooks as the user is unable to access his/her company files. After reading this thorough blog, users will lean all the relevant methodologies to troubleshoot QuickBooks error C=343.

If the error still doesn’t get fixed, then our QuickBooks ProAdvisors will aid you through the troubleshooting process.

Checkout these quick solution methods in order to resolve the QuickBooks error message C=343:

Solution 1: Update QuickBooks

Solution 2: Register MSXML.Dll

Solution 3: Set up the latest MSXML component

Solution 4: Opening QuickBooks in the Safe Mode

Solution 5: Disable Windows Compatibility Mode

Solution 6: Getting the company file overhauled


With that, it is time to conclude this article on the various measures to rectify Error C=343 in QuickBooks. If users still come across any unexpected issues in QuickBooks, they should call our QuickBooks error support team of experts at the helpline 1-800-761-1787.