If you do not have any USB connectors from tablet to PC, are there any applications which allow you to transfer your files from tablet to PC through Wi-Fi or other alternatives?
The above symptom may occur on the following systems:
It is a web-based file hosting service that uses cloud storage to enable users to store and share files and folders with others. You can upload file from tablet to dropbox and later download by another computer.
You need internet connection to do this because it is web based service.
Turn on the bluetooth on both tablet and the computer. Try to pair and connect to each other in order to transfer file.