When attempting to open Point of Sale or when attempting to receive a mailbag in Point of Sale Multi-Store, the following message is returned:
Error 176102: QuickBooks Point of Sale could not locate a valid installation on this machine
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Note : Before following any of the steps, ensure that your computer meets the system requirements.
Make sure the user logged into Windows has sufficient permissions to run Point of Sale. This can be tested by logging into Windows as an Administrator. If it resolves the issue, increase the permission levels for the user normally logging into windows. Alternatively, you can try logging in under a brand new Windows user.
If steps 1-2 do not resolve the error, perform a clean re-install for Point of Sale.