First, you would be MUCH better served if you started a new question rather than tagging on to a dead discussion.
What has happened is that you downloaded a "Click to run' installation file. MS, in it's infinite wisdom has decided that "it is better" (for them) if you buy an online download of Office, that they will give you (without your knowledge or consent) a virtual
installation. A click to run installation. When it "installs", it automatically creates that "Q:" drive. The file that holds the Q: drive has very restricted access.
The only way to get rid of the Q: is to uninstall the associated Office, download and install Office using the "normal" MSI installation file. Here are instructions on how to do that:
Switch to using an MSI-based Office edition (only applies to versions bought online) -http://office.microsoft.com/en-us/excel-help/click-to-run-switch-to-using-an-msi-based-office-edition-HA101850538.aspx****
What to look for when switching from CTR to MSI (with picture of “advanced options” link) –http://www.msoutlook.info/question/473****
Here is some propaganda about CTR.
CTR Introduction (Identify CTR installation) - https://office.microsoft.com/en-ca/excel-help/click-to-run-introduction-HA101850493.aspx?CTT=3
Overview of Microsoft Office Click-to-Run for Office 2010 ****http://blogs.technet.com/office2010/archive/2009/11/06/click-to-run-delivering-office-in-the-21st-century.aspx