Hazardous said:
Actually, I think half of my games are still installed for my old XP install(which still exists on my secondary HD) and it works just fine. And many apps also work, apart from heavier office software.
Yah most games are not a problem, but I bet you lost a lot of settings for the applications that you copied / and or some aspects of the application might not be working right, and others probably didn't work at all.
Hazardous said:
One partition is absolutely stupid way to go. One crash and you lose absolutely everything. I've seen it happen several times. I've also seen single partitions(both OS and non-OS) committing harakiri, and after seeing all that I'm much more comfortable with keeping my stuff in several partitions(I usually have three). As TechZ mentioned, it also makes defragmenting and disk checks faster.
If you're talking about a physical HD crash (and my bet also a software induced one), then partitioning isn't going to help you much, personally I think you're increasing your chances of things going wrong, because now you have the partition table to deal with (and I've lost partitions because of that).
If your HD crashes I think you'll have a much better chance without partitions.
Usually (I've had a few way back when), you can hang your HD off of another one, and everything or most of it will probably still be there if you have one partition.
However if you have partitions, you can't always say the same, I've had crashes that screwed up the secondary partition and I could say bye bye to everything on it, whereas everything on the primary one was just peachy.
As for defragmenting, sure it's helpful, but it's a bit over-rated anyway (it's not like you run that every day).