The delete key shows a period instead of deleting

This information is copied directly from Amazon's help section.

Remove Items from Your Content Library Permanently remove books, audiobooks, periodicals, and personal documents by deleting them from Manage Your Content and Devices.
Manage Your Content and Devices.

From Your Content, change the Show drop-down menu to the appropriate category, if needed.

Select the title(s) that you want to delete, and then select Delete.

To confirm, select Yes, delete permanently.

Reinstall the ATK-drivers from the asus download site. Delete the old ones before reinstalling.

what keyboard is it?

for me this happens alot when I miss click im not sure on the correct key but if anything try just holding ctrl with one finger then click and delete one file to start to see if it still does it if not when moving the mouse you are hitting an extra key which makes it copy.

Check for the applications which are trying to access internet every time. Press and Hold Home key, then you will see the list of active applications.

The ". del" key on the Numerick KeyPad will delete if you use the SHIFT key at the same time. It is easier to use the DEL key on the main keypad.

Note that "deleted" items move from their location into the "Recycle Bin".

So, "empty" the Recycle Bin, in order to reclaim the space.

Or, when deleting:
1. click ONCE to select a file/folder to be deleted
2. hold the SHIFT key down
3. click the DELETE key
4. release the SHIFT key

This will "permanently" delete the file/folder, immediately freeing-up the disk-space.

You have the Num Lock Key on

Press it once to turn it off then Del works fine

The video files should be in the video folder instead of the music folder - use Windows Explorer to be sure. If they are not showing up, switch the device's mode to MTP mode and see if the video files show up as available for deletion.

-Tha Mp3 Doctor

Hold down the "caps" key (bottom left-most or right-most key) and while holding down the key use the track-ball to move down or up selecting multiple emails ... then just delete as usual.

- Cheers.