QB Issue Resolution:

It seems to me that QuickBooks hasn’t been registered yet. To verify if QuickBooks is already registered, open QuickBooks and press F2. On the next window, it will give you the Product Information. Take note if it says Registered or Unregistered.

Resolution for Issue 'My computer told me I only have 6 days left to use quickbooks. I do not know why. Any help?' available: Yes (Solved).
Source: Intuit Community forum.

My computer told me I only have 6 days left to use quickbooks. I do not know why. Any help?: 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.

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