Partitioning a single-disk computer - why?

[QUOTE=Quartz]
If you’re only reinstalling Windows, you should never need to reformat.
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While I agree in theory, it’s been my experience that a reformat needs to happen. Even for a relatively routine reinstall (like I generally do once or twice a year to clean out the crap. Some day I’ll get an imaging program and start using that instead.)

[QUOTE=asterion]
While I agree in theory, it’s been my experience that a reformat needs to happen. Even for a relatively routine reinstall (like I generally do once or twice a year to clean out the crap. Some day I’ll get an imaging program and start using that instead.)
[/QUOTE]

Agreed. A reformat may not be explicitly necessary, but it’s still considered best practice.

[QUOTE=drachillix]
Give it a good 10GB at least, some apps dont like to play nice with other drives so you need some breathing room. If you don’t do things like ITunes and don’t use a lot of data storage 10GB as a data partition is more than enough. I usually just split them down the middle and call it good.
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Photoshop tells you to dedicate a scratch disk to it, or if you don’t have a separate drive, to dedicate a partition so it has room to “think” when it is manipulating multi MBs of images.

[QUOTE=Omniscient]
Agreed. A reformat may not be explicitly necessary, but it’s still considered best practice.
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Especially in this day and age. From what I’ve read, there’s a growing trend of spyware and viruses that need reformatting (rather than just OS re-installation) to truly get rid of. (I can’t quite remember where I read it, or I’d provide a cite.)

[QUOTE=Gozu Tashoya]
Especially in this day and age. From what I’ve read, there’s a growing trend of spyware and viruses that need reformatting (rather than just OS re-installation) to truly get rid of. (I can’t quite remember where I read it, or I’d provide a cite.)
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IME its about 20% of all badly virus infected machines cannot be cleaned by normal means. About 50% would still be more easily achieved by a clean install.