Crash Com Error in QuickBooks 2018 Desktop Pro When Emailing Invoice in Windows

Fix Crash/Com error when running QuickBooks Desktop. Update your QuickBooks & repair QuickBooks company file using file doctor.

QuickBooks Com Error 2018
QuickBooks Com error is prompt when the Microsoft’s update system is being operated and crashes the whole system vanishing the complete QuickBooks and other data. However, a major issue that some customers are facing with Quickbooks is a “Com Error”. A Com Error can be resolved with the following steps but before that, there are certain prerequisites that you need to follow.


Read This: QuickBooks Server Is Not Responding – How to Fix

First and foremost try uninstalling Microsoft Office and reinstalling it. If the error continues, we can isolate the issue with being Quickbooks related and not just a contradiction between the two software packages.

What User Experiences:

  • "Com error" and shuts down the computer. 
  • "Crash: Com Error"

Reason Behind Com Error: 

Microsoft’s Automatic Upgrade

Com Error Occurs During:

Saving And Closing A New Estimate, Invoice Or Purchase Order, Sending Email Employee Paystubs.

1. Try to click an invoice to update it.

2. Access a job to create an invoice.

3. Try to create a new job.

4. Try to enter a payment for an invoice.

5. Send an invoice via email.

6. Print an invoice.

7. Enter a new vendor.

8. Enter a bill for an existing vendor.

After this, confirm that only 1 computer is hosting your company file. Stop hosting on every computer away from the server.
  1. From the QuickBooks File list, choose Utilities. 
  2. Tap on switch off hosting multi-user grant. 
Smart advice: If you notice anything other than switch off hosting multi-user permit, it signifies that hosting is currently switched off on that computer. 
  1. Once you confirm that hosting is off, continue below.
Also, confirm that your QuickBooks Desktop Program is not damaged. Start an individual company file and if you furthermore get a problem, continue to fix Solution 7 QuickBooks Desktop Installation.

Next, please ensure that Quickbooks desktop is updated to the latest release. Once you have updated that, please install and run QuickBooks Install Diagnostic Tool (QBInstall Tool) to fix various other errors that you might be receiving an error while opening the data files on Quickbooks

Here’s how to run QBInstall Tool

  • Download the QuickBooks Install Diagnostic Tool.
  • You will get a Prompt to save the file. Save the file to the local Desktop. 
  • Make sure that no other program is running. If there are any other open programs, close them and then run the QBInstall Tool. 
  • Running a diagnostic test in Time consuming. If you think it’s taking too much time, please dot get restless. It may take up to 20 minutes, depending on the speed of your internet and computer performance. A slow computer can slow down any application. Your computer’s performance might also be a reason of the com error. If it’s a slow system or it is an old system or has too much data it might be interfering with Quickbooks.
  • Now that QBInstall Tool has run successfully, restart the computer to make sure it has downloaded correctly. 

If you still get an error after this diagnostic Test, you will need to consider repairing the Quickbooks Desktop to repair any data damage. 

You can also consider shifting Quickbooks to another computer and using it there. If it runs successfully on another computer, then there is an issue with your computer. Make sure that you diagnose what the problem is or Quickbooks will keep getting the same issue time and time again. You can troubleshoot your desktop or get someone to do it for you so that you can run Quickbooks software without any error.

Method 1: Make Outlook as default mail app

  • Go to Control Panel > Default Programs > Set your default programs.
  • From the Programs menu, choose Outlook then select Fix this program as default.
  • Select OK.

Method 2: Append an email account to Outlook

  • In Outlook, choose the File list.
  • Choose Add Account to open setup.
  • Add the email address you need to append and choose Connect.
  • Ready for Outlook to by itself identify the correct server settings then choose Connect.
  • Insert the password you manage to the email address then choose OK.
  • Choose OK to finish fixings.

Note: If QuickBooks Desktop is unable to find Microsoft Outlook, (to find this, go to Edit > Preferences > Send Forms > My Preferences tab to recognize if you have the choice to pick Outlook)  you may require opening the computer and patch QuickBooks. You may also demand to build a new Windows user profile. If the new Windows profile does not detect Outlook in QuickBooks preferences, correct QuickBooks. In some cases you may get an error like QuickBooks file you specified cannot be opened - windows error, so in this case contact to QuickBooks support center.

Method 3: Toggle mail configurations

  • Go to Control panel > Mail.
  • Pick Microsoft Outlook.
  • In the Mail Setup window, choose Show Profile.
  • Note: Steps 2 and 3 may be omitted if MS Outlook is previously set as default mail program.
  • If constantly use this profile radio button is previously chosen, choose Prompt for a profile to be Toggle the configurations back to always use this profile and Apply.
  • Choose OK.

Method 4: Make a new Microsoft Outlook email Profile

  • Shut Microsoft Outlook
  • Go to the Control Panel > Mail.
  • Choose Show Profiles...
  • Tap Add...
  • Add the name of the profile under Profile Name and tick OK.
  • Enter an email account to use in your profile by following the commands on the screen.
  • Below Always use this profile choose the drop-down, select the newly created profile, tap Apply then OK.
Important: This doesn't delete the real Outlook Profile.

Method 5: Fix Office and run Windows update

Refer to these Microsoft articles for specific levels
  • Troubleshoot MS Office
  • Windows Update: Frequently Asked Questions
Note:  Intuit doesn't support Microsoft apps and is not liable for operating this software. If you're difficult to accomplish these steps, we suggest having an IT people you have trust in to do this for you.  Few possible risks are:
  • Microsoft Windows and or MS Office Issues
  • Failure of MS Office license number and inadequate to download

Method 6: Start QuickBooks in compatibility environment

  • Right, click the QuickBooks image on your PC then choose start QuickBooks in compatibility environment.
  • Choose Compatibility and from the Compatibility environment part, check the box Run this program in compatibility environment for:
  • From the drop-down, choose MS Windows 7.
  • From the Right Level section, put a tap on start this application as an admin.
  • Choose Apply and OK.


Before following steps, you will recommend creating a backup copy of your company file.

Here's what you'll need to do:

  • Press the Ctrl + Alt and Delete keys at the same time.
  • Choose Start Task Manager.
  • Look for qb.exe, .qb and QuickBooks, then right click on it and select End Task.

Now, let's repair QuickBooks by following the steps below:

  • Click Start and select Control Panel. (In Windows 8: From the Start menu, type in Control Panel in the Search field. From the results, click Control Panel.)
  • Select Programs and Features. If necessary select Uninstall a program.
  • If you don't see these options, select Programs and choose Program Features.
  • Select QuickBooks and click Uninstall/Change.
  • In the QuickBooks Installation window, click on Next and select the Repair radio button.
  • Click Next and select Repair.
  • Click Finish and restart your computer if prompted.

Then, try sending your email. 


1) Open up a command prompt as administrator
"C:\Program Files\Common Files\Microsoft shared\ClickToRun\officec2rclient.exe" /update user updatetoversion=16DOT0DOT8326DOT2107
2) This will lower your office to the previous edition. I observed that the 2107 edition works accurately with Quickbooks.
3) Next this (takes 15-20 minutes), open up an MS office like Word, then go to File > Account. Tap the "Update Options" key, and select "Disable Updates." confirm to turn these back on when we get support from Intuit that this is corrected, otherwise you put your PC at danger!

4) Give your PC a restart for success!.


Reverted to Build 16.0.8625.2121 of office 365


Perform A Clean Boot

  • Log on as an admin to the computer so that you can execute a clean boot.
  • Your desktop may for some time suffer few technicalities when you do a clean boot. During you open the computer to ordinarily, the technicalities back. But, you may get the real error code, or encounter the real action if the error still continues.
  • If the desktop is combined with a network, network policy environments stop you from following these methods. We completely advise that you do not use the System operations utility to modify the first boot prospects on the computer unless an IT support guides you to do this. Making this may get the PC unusable.
After you have done the clean boot:
  • If you were trying to install, uninstall, or run an application, see Install, uninstall, or run an application.
  • If you were trying to fix an error or problem, see How to determine what is causing the problem after you do a clean boot.
  • When you are finished with the troubleshooting steps, make sure to Reset the computer to start normally after clean boot troubleshooting.


Close down OUTLOOK if it is running. The error has to do with .NET. I updated to .NET framework 4.5 and reinstalled Quickbooks.


Set Compatibility Mode for axlbridge.exe*32 to ALSO be Windows 7

Despite all this, if the problem persists, you can always contact Quickbooks Support through Call, Email or Chat. The experts there will guide you with the step by step procedure.

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QuickBooks Sign In - Login Help & Account Recovery: Crash Com Error in QuickBooks 2018 Desktop Pro When Emailing Invoice in Windows
Crash Com Error in QuickBooks 2018 Desktop Pro When Emailing Invoice in Windows
Fix Crash/Com error when running QuickBooks Desktop. Update your QuickBooks & repair QuickBooks company file using file doctor.
QuickBooks Sign In - Login Help & Account Recovery