Quick Fixes for QBmapi64 Out of Memory Error
                     A Definitive How-To Guide on 
QBmapi64 Out of Memory
Are you encountering the qbmapi64 out of memory error and 
seeking a solution? This blog provides insights into the potential 
causes of the issue and offers effective troubleshooting methods.
The QuickBooks out-of-memory error typically occurs when the software 
consumes more memory than the syst The error message typically reads, 
"Not enough memory to complete this operation. Existing program." This 
out-of-memory problem can cause the QuickBooks application to freeze, 
crash, or show error messages indicating memory loss
Click Here to Fix qbmapi64 out of memory error While Sending Invoice
To resolve the qbmapi64 out-of-memory problem, you must repair QuickBooks and uninstall 
and reinstall Microsoft Office 365. Read the entire blog carefully to learn how to do it.

What Triggers the QBMAPI64 Error in 
QuickBooks?
The qbmapi64 out-of-memory problem is typically attributed to insufficient free 
RAM and interference from another application that prevents QuickBooks from 
opening. Additionally, the following factors could contribute to this memory-
related error:
• The QuickBooks application may have underlying issues hindering its ability to 
recognize the available memory on your computer.
• Your system may not meet the minimum system requirements for QuickBooks 
2023 installation.
• Installing QuickBooks requires at least 1 GB of memory; failing to meet this 
requirement can cause an error.
• Encountering the message 'not enough space on the C disk to install the 
QuickBooks' might suggest a faulty QuickBooks Installer package.
Effortless and Efficient Troubleshooting 
for Out-of-Memory Error
When encountering an out-of-memory error in QuickBooks, QuickBooks 
engineers recommend users resolve the issue by reinstalling Microsoft 365 
and repairing the QuickBooks program. Below, we provide step-by-step 
instructions on how to accomplish this:
Solution: Uninstall and Reinstall Microsoft 
365 Using Control Panel
Use the Control Panel to uninstall Microsoft 365. If your installation is Click-to-
Run or MSI, download the uninstall support utility.
1. Access the Control Panel, the procedure for which varies depending on your 
Windows version:
For Windows 7:
• Navigate to the Control Panel from the Start menu and click on it.
• Select Programs > Programs and Features.
• Right-click on the Microsoft 365 program you wish to uninstall and select 
Uninstall.
For Windows 8 or 8.1:
• Right-click on the Start button (lower-left corner) and select Control Panel.
• From Programs and Features, choose Uninstall by right-clicking on your 
Microsoft 365 package.
For Windows 10:
• Type "control panel" into the taskbar's search box and click Control 
Panel.
• Under Programs > Programs and Features, right-click on your Microsoft 
365 product and select Uninstall.
• Follow the instructions for the removal process.
Note: If Microsoft 365 is not visible in the Control Panel, you may have a 
Microsoft Store installation type. Use the Microsoft Store tab above and 
follow the removal instructions in such cases.
• To reinstall Office 365, select the desired version and follow the 
instructions based on the Office version you wish to restore
Office 2021, Office 2019, Office 2016, Office 2013, Office 2010, Office 
2007, or Microsoft 365.
Installation Process:
1. Locate your profile symbol situated in the upper right corner, which may 
display your profile photo or initials.
2. Choose "View Account," followed by "Office Apps."
3. Now, click on the "Office Apps & Devices" option.
4.  Select "Install Office."
5. Follow the on-screen instructions provided.
6. After the installation, restart your desktop or laptop before using 
Microsoft 365 apps.
7. Upon rebooting, attempt to launch Word or any other Microsoft 365 
program. Ensure to sign in to the application to activate all apps.
8. You are now ready to utilize every Microsoft 365 app. Ensure you remain 
logged in at all times.
Next, if the error persists, proceed to repair QuickBooks using a tool 
available in the QB Tool Hub, such as Quick Fix My Program or QuickBooks 
Install Diagnostic Tool.
The blog outlines the causes and troubleshooting steps for the QBmapi64 
Out of Memory error. If uninstalling and reinstalling Microsoft 365 and 
repairing QuickBooks fail to resolve the issue, contact +1.833.802.0002 
to describe your current situation to an expert. You will receive prompt and 
expert advice to fix the problem effectively.