How often do you reinstall windows?

[Seedler]

I'm too lazy to manually clean up my comp, so I backup and reinstall windows every 2 months.

edit: sry for typo in thread title

[Yoga]

once every year and a half, sometimes more. Every 2 months seems too extreme

What do you use to backup?

[zapjb]

It's about 1x a year with XP. That is as far as need goes. But fooling around with nLite has increased that many times. But thats just for tweak sake not need.

[Skiz]

I've been running the same PC for almost 3 yrs now with no reinstall.

[Guillaume]

About twice a year, unless the computer has major hardware changes (new mobo, etc.)

[Aaron_T]

normally about once a year, the thing usually fucks up around that often.

[Seedler]

once every year and a half, sometimes more. Every 2 months seems too extreme

What do you use to backup?

I use nero 7 and backup with multisession dvds

[backlash]

I put never only because there was no option that suited my answer. I only reformat and install a clean OS when necessary. I don't mess my computer up and need to fix it. I'll probably do my computer in the new year, but we'll see what happens. It would only be done to give me something to do.

[tesco]

Used to a lot.
Then I stopped betwene last summer and feb 2005, then never after that until I got this comp (christmas).
Planning not to for another atleast 6 months

[Busyman]

Never