by Sunburst Software Solutions, Inc.
Archives by Month

QuickBooks & AVG Anti-Virus software

Print Friendly, PDF & Email

A recent AVG Anti-Virus update was responsible for receiving the following error message when trying to open (start) QuickBooks:

An error occurred when QuickBooks tried to start the database server that manages access to the QuickBooks company file.  Error (-6094,0).

According to an Intuit Support Article, this issue was resolved by AVG, who had unnecessarily detected QuickBooks as being infected with a virus.

The fix, was not pleasant and I’m certain that there were a lot of very unhappy QuickBooks users!

Correcting the problem involved the following steps:

  1. Update AVG to the latest virus definition
    Signature file 271.1.1/2832 (AVG v9.0.814) – this update was just released to correct the issue where AVG unnecessarily detects QuickBooks as infected with a virus
  2. Restore QuickBooks files that were quarantined by the anti-virus.
    OR
    Repair the QuickBooks installation.

Intuit offered the following detailed instructions for resolving Error (-6094,0):

Follow these instructions to update AVG to the latest virus definition:

  1. Open the AVG Anti-Virus User Interface
  2. Click on the Update now button on the left part of the AVG user interface
    or
  3. From the Tools menu, select Update

Important: Always make sure to download the latest virus updates so that you are always protected

Restore any QuickBooks files that are in the vault :

  1. Open AVG Anti-Virus User Interface
  2. Click History from the top menu bar and select Virus Vault
  3. Locate any QuickBooks files and select one file at a time
    • Possible files include: qbw32.exe, qbdbmgr.exe, qbdbmgrn.exe
  4. Click Restore located at the bottom of the window
  5. Once finished restoring all QuickBooks files, click Close
  6. Close AVG Anti-Virus User Interface

If you are still unable to open QuickBooks, or if there were no QuickBooks files in the Virus Vault, you may need to repair the QuickBooks installation.
Click the link below for steps on repairing QuickBooks:
https://support.quickbooks.intuit.com/support/pages/knowledgebasearticle/363372
Repairing QuickBooks does not affect company data files (.QBW). The data stored in these files will remain intact.

One Response to QuickBooks & AVG Anti-Virus software

Leave a Reply

About Your Host:

Nancy Smyth, Certified QuickBooks ProAdvisor

Nancy Smyth, Sunburst Software Solutions, Inc.
QuickBooks Construction & Payroll Expert


I've been using and supporting QuickBooks products since the early 1990's. I've worked with thousands of contractors, assisting them with QuickBooks setup, Certified Payroll Reporting requirements, AIA Billing and Weighted-Average Overtime.


QuickBooks is a powerful product, but learning how to use it in your construction business can be difficult. I hope you find resources available here to be helpful.

Search our site
Stay updated!

Sign up to receive our latest QuickBooks Tips, Tricks & News via email:


Enter your email address:

Delivered by FeedBurner


We promise NOT to sell, rent, or otherwise distribute your name and email address!

FREE 30-Day Trials

Request FREE 30-day Trials of QuickBooks add-ons for Certified Payroll, AIA Billing & Payroll Wage Management. Save time and increase accuracy on time-consuming error prone tasks; so you get paid on time!

Free 30 day trials of QuickBooks integrated add-ons for certified payroll, aia billing and weighted-average overtime

Certified Payroll Training:
Learn how to complete a Certified Payroll (Prevailing Wage) Report and fulfill your reporting requirements - 2 hour recorded webinar - $99.99. Click here for more info.

certified payroll requirements webinar
QuickBooks Training

Frustrated with QuickBooks?

QuickBooks Premier ContractorLearn how to get the MAXIMUM possible results from QuickBooks in your construction business! Visit our new QuickBooks training website, Learn to use QuickBooks in your construction business.

QuickBooks Time Tracking

Save 10%/FREE 14-day trial!


QuickBooks Time Tracker