There are many questions of the form "Ubuntu installed over my (Windows) partition, how do I recover it?". Most are already tagged as some combination of "data-recovery" and/or "system-installation" and/or "partitioning". Quite often all three are used at once. So I have been tagged the problems with all three tags ("data-recovery" and "system-installation" and "partitioning").
@Braiam pointed out that these tags are not accurate:
the "system-installation" tag is for the process of installing ubuntu only. Do not use if the problem is post-installation. And partitioning is for questions about the process of creating, editing or removing partitions.
So what should they all be tagged as? Just "data-recovery"? It would seem quite useful to have some combination of tags like partitioning+data-recovery that reflects this particular problem, since it is quite common (I count 40 questions since start of April 2014)?