how to know either the installed os is either 32bit or 64bit

i have installed solaris/windows operating can i know whether the installed os is 32 bit or 64bit
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Lee W, MVPTechnology and Business Process AdvisorCommented:
What do the CDs say?  What kind of computer did you install them on?
Wooky JackCommented:

Yes we need a little more information if we can help you.  Do you know if you have a 64bit processor?
If you do not have a 64 bit processor, you know you have 32bit version. Click start, run and type dxdiag. On the main page of the popup window, you will see the system specs. if the OS is 64bit, it will say like Windows XP x64 or something.
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Mohammed HamadaSenior IT ConsultantCommented:
Download this software then you can know what windows you have..!

Good Luck

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Windows XP says in the bootup screen that it is x64 Edition
With windowsxp you can look in C drive/ windows and then system folder 32 or /64 if it says system 32 then presto.

Dushan De SilvaTechnology ArchitectCommented:
Hi vallabhaneni99,

32-bit version is having following folder
64-bit version is having following folder

BR Dushan
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