With regards the Ctrl-V problem, do you have any other software loaded that might be intercepting these shortcuts? Typically, this might be some agent software, or overlay software. One such problem software is Steam, but there are many others that hijack the standard keyboard shortcuts, as well. Also, at around the time that the clipboard functionality disappeared from Word, were there any changes to the installed software on your PC, or did you make use of any downloaded templates of files that use macros and VBA, at all? Also, what the settings for Add-ins, ActiveX Settings and Macro Settings within the Trust Center in Word. You can find this under "File > Options > Trust Center".
As for the lack of "About" information, if you have a reasonably up-to-date version of Word, you can find it by going to "File > Account" and click on the "About Word" button on the lower-right of the Word window, dispplayed.
Please let me know how you get on.