QB Issue Resolution:
You can also do a clean uninstall and then download from the Intuit website. That download will include R8.
Resolution for Issue 'Quickbooks Pro 2013: Update to R8 from fresh install fails silently. How can I fix this?' available: Yes (Solved).
Source: Intuit Community forum.
Quickbooks Pro 2013: Update to R8 from fresh install fails silently. How can I fix this?: this 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 issue yourself by looking for a resolution described below. If it is a complex issue or you are unable to solve the issue, you may contact us by clicking here or by using other support options.Support for Other
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Error Recovery for Other [Canada]
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Additional Support Options: