This error occurs when an update has been downloaded for your anti-virus or malware software. This commonly happens inside of three anti-virus programs:

  1. PC Tools Internet Security
  2. AVG Anti-Virus
  3. SpyHunter Malware

Here’s an article that should help you fix this: http://support.quickbooks.intuit.com/support/Articles/SLN43210.

Resolution for 'been downloaded issue: 'I am using QB 2010 but am unable to open it due to error code (-6904,0)' available: Yes.

The been downloaded issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the been downloaded issue yourself by looking for a resolution described in the article. If it is a complex been downloaded issue or you are unable to solve the issue, you may contact us by clicking here or by using other been downloaded support options.

For more information about resolving issues related to been downloaded in Quickbooks/QBO or to get support for the issue 'I am using QB 2010 but am unable to open it due to error code (-6904,0)', click the link below: