When I connect the android tablet to windows 7 I get 2 external devices, one of them (H) doesn't open.
When I open G:, I get this
If I want to copy an app (adobe reader) to the tablet, to which folder should I copy it?
This is the screen of the tablet:
Where should I access the folders and files from?
adb install myfile.apk
to get the app installed. For how to install ADB, see Is there a minimal installation of ADB?