How to Fix QuickBooks Desktop Error Code 193:0xC1?

Published Date: May 23, 2025   Updated Date: June 2, 2025

QuickBooks Error Code 193:0xC1

QuickBooks Error Code 193:0xC1 occurs when the software encounters issues with corrupted or damaged installation files, preventing the program from running properly. This error can happen in all versions of QuickBooks Desktop, such as Pro, Premier, and Enterprise, typically during startup or when performing specific tasks like creating invoices or generating reports. The issue can also be caused by conflicts with security software, outdated QuickBooks versions, or problems with Microsoft components like .NET Framework or C++ redistributables.

To fix QuickBooks Error 193:0xC1, you can try updating QuickBooks, repairing the installation, or reinstalling the software. Ensure your Windows and QuickBooks are both up-to-date, and check for any conflicts with your antivirus or firewall. Identifying and resolving missing or corrupted components, along with using the QuickBooks File Doctor tool, can also help prevent this error from reoccurring.

Method 1: Clean Installation of QuickBooks Desktop

A clean installation of QuickBooks Desktop ensures that all files are properly reset, potentially resolving any issues caused by corrupted or incomplete installations.

  1. Open the Start menu.
  2. Select Control Panel.
  3. Click Programs and Features.
  4. Find QuickBooks Desktop in the list of installed programs.
  5. Click Uninstall/Change, then select Remove.
  6. Click Next and reinstall QuickBooks Desktop.

Method 2: Manual Update of Windows 10/Server 2016 Version 1803

Manually updating Windows can resolve compatibility issues and ensure your system is running the latest features, helping to prevent errors.

  1. Go to the Utilities tab and select Resend to validate the mailbag.
  2. Choose a customer from the list, then click the Shift tab.
  3. For version 9, press CTRL + A.
  4. This will direct you to Customers. Then, go to the File menu on the headquarters server.

Method 3: Delete .QBT Files from Remote Store and Headquarters

Removing .QBT files from both the headquarters and remote store locations can help resolve QuickBooks error 193.

Step 1: Delete Files from Headquarters

  1. Go to this path:
    C:\ProgramData\Intuit\QuickBooks Point of Sale x.x\STex
  2. Find all files with the .QBT extension.
  3. Delete all .QBT files in the folder.

Step 2: Delete Files from Remote Store

  1. Use the search bar and type .QBT to locate files.
  2. Delete all .QBT files found in the search results.
  3. Empty the Recycle Bin.

Step 3: Create New Remote Files

  1. Open Company Operations and select Create a New Company.
  2. Enter the company name and choose the Remote Store option.
  3. Enter the store number.
  4. Resend the mailbag from headquarters to the remote store.

Method 4: Delete Customers in QuickBooks

To remove a customer, mark them as inactive. This hides the customer from lists and menus but retains their transactions in reports.

Important:
Deleting a parent customer also deletes their sub-customers. If a project is linked to a customer, you must delete the project before marking the customer inactive.

  1. Go to Sales, then select Customers.
  2. Click the customer’s name to open the profile.
  3. Select the dropdown next to Edit.
  4. Click Make inactive, then choose Yes, make inactive to confirm.

Method 5: Check Mailbag After Deleting Customers

QuickBooks error 193 can also occur due to issues like merged or missing customer names caused by the software. Deleting these customers from the list can help resolve the error.

  1. Open QuickBooks Desktop and go to Reports.
  2. View the Customer List.
  3. Select a customer twice to open their details.
  4. Click All Options, then select I Want To.
  5. Check the box for Delete the Customer.
  6. Go to Files, select Utilities, then click Resend.
  7. Check the Store’s Mailbag for updates.

Method 6: Scan the PC for Viruses

Run a full virus scan using trusted antivirus software to detect and remove any threats.

  1. Install reliable antivirus software if it’s not already installed.
  2. Open the antivirus program.
  3. Select the option for a Full System Scan.
  4. Start the scan and wait for it to complete.
  5. Remove any viruses or malware found.

Method 7: Restart the QuickBooks Database Service

The QuickBooks Database Service allows access to company files in multi-user mode. If this service is not running, error 193 may appear.

Note: This solution applies only if QuickBooks Database Server Manager is installed on the server or host computer.

  1. Open the Start menu and go to the Control Panel.
  2. Click Administrative Tools.
  3. Select Services.
  4. Find QuickBooksDBXX in the list (replace XX with your version year, such as QuickBooksDB31 for 2021).
  5. Right-click the service and choose Restart.

Restart the server computer and try again if the service doesn’t restart.

Method 8: Update Your Windows

Outdated Windows files can cause issues with QuickBooks, and installing the latest updates ensures smoother performance and resolves errors like error 193.

  1. Click the Start menu and open Settings.
  2. Select Update & Security, then choose Windows Update.
  3. Click Check for Updates.
  4. When updates are available, click Download & Install.
  5. Restart your device if asked.

Method 9: Update Point of Sale

Updating QuickBooks Point of Sale can help fix error 193.

  1. Open QuickBooks Point of Sale.
  2. Click Help in the top menu.
  3. Select Software Updates, then choose Check for Updates.
  4. Install any available updates.
  5. After updating, retry the Store Exchange.

Method 10: Use QuickBooks Tool Hub

QuickBooks Tool Hub provides multiple tools to fix common errors, including error 193.

  1. Download QuickBooks Tool Hub from the official Intuit website.
  2. Save the file to an easy-to-find location.
  3. Double-click QuickBooksToolHub.exe and follow the on-screen instructions to install.
  4. Once installed, open QuickBooks Tool Hub.

Use the following tools inside QuickBooks Tool Hub:

  • Go to the Network Issues tab and select QuickBooks Database Server Manager to fix network-related problems.
  • Open the Company File Issues tab and run QuickBooks File Doctor to repair file-related issues.
  • Use the Installation Issues tab to run QuickBooks Install Diagnostic Tool and fix installation problems.

What are the Prerequisites to Fix QuickBooks Desktop Error Code 193:0xC1?

To fix QuickBooks Error 193:0xC1, ensure you have:

  • A stable internet connection for updates and tools.
  • A backup of your company files.
  • Admin access to your computer.
  • The latest version of QuickBooks installed.
  • Updated Windows and Microsoft components (e.g., .NET Framework, Visual C++).
  • Temporarily disable antivirus/firewall for troubleshooting.
  • QuickBooks Tool Hub or File Doctor for repairs.

How to Identify QuickBooks Desktop Error Code 193:0xC1?

  1. Error message “Error 193:0xC1” appears.
  2. QuickBooks fails to open or perform tasks.
  3. Occurs during startup or updates.
  4. Program freezes or crashes.
  5. Caused by corrupted files or conflicts.

How to Prevent QuickBooks Error Code 193:0xC1?

  1. Keep QuickBooks and Windows up-to-date.
  2. Update Microsoft components (e.g., .NET Framework, Visual C++).
  3. Configure antivirus/firewall to allow QuickBooks processes.
  4. Complete all installations and updates.
  5. Use QuickBooks Tool Hub for repairs.
  6. Regularly back up company files.

When Should You Seek Professional Help for QuickBooks Desktop Error Code 193:0xC1?

Seek professional help for QuickBooks Desktop Error Code 193:0xC1 if you’re unable to resolve the issue using basic troubleshooting steps, such as updating QuickBooks, repairing the installation, or disabling security software. If the error persists after attempting solutions like reinstalling QuickBooks or using the QuickBooks Tool Hub, it may indicate a more complex underlying problem, such as deep file corruption or system conflicts. Also, if you encounter repeated errors or your data is at risk, it’s best to consult a QuickBooks expert or technician for assistance.

Hire QuickBooks Error 193:0xC1 Resolution Services

When troubleshooting QuickBooks Error 193:0xC1 feels too complex or risky, hiring professional services can save time and prevent data loss. Dancing Numbers offers quick, reliable support with certified professionals who ensure minimal downtime and lasting solutions. Get in touch with us to fix QuickBooks Error by
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