StrixVaria has noted in his answer to The Great Arqade Clean-Up of 2012:
If [technical-isssues] questions are allowed to remain on the site, then grouping them together is a logical thing to do. The same general expertise applies to many of these cross-game (although this isn't always true).
Being familiar with computer hardware and common software misconfiguration is an area of expertise, which is the general basis for what makes a good tag.
In a comment he emphasized the fact that this tag is better than nothing if these questions continue to be allowed. So I want to ask: Should they continue to be allowed? If so, do we need to restrict them based on level of detail or how common they are?
Another set of questions to consider involves scope. Should we allow console tech support and obviously game-specific issues, but rely on Super User for general PC issues? (Or some other subdivision?) Is Gaming the place for generic PC tech support? Do we have the requisite expertise? Conversely, will users suffer if we rely on Super User (et al) for this? Will users suffer if we keep the questions here and don't rely on Super User?