windows 64 or 32 bit

hello

i m lil confused between 32 and 64 bit? which 1 is better?

i installed windows 7 ultimate 64bit in my laptop. do i need to change into 32 bit?

Stick with 64 bit it is more secure

windows 7 64 bit more expensive to buy or 32 bit?
And if I have 2 GB ram is it enough o.O?

@krypton
See:
32-bit and 64-bit Windows: frequently asked questions
http://windows.microsoft.com/en-CA/windows-vista/32-bit-and-64-bit-Windows-frequently-asked-questions

The CD I have has both versions on it and if the CPU supports 64bit then you can install the 64bit Windows 7.
I have 4GB RAM on my system and that is plenty plus 2GB RAM is quite inexpensive and if your system supports it then it will be used.

Aww too bad :frowning:

i m using 2 gb ram so is that sufficient for 64 bit?

With WINDOWS 7 ULTIMATE it would greatly benefit from an additional 2GB RAM and 4GB would be better.
However a LENOVO G550 might need special RAM.

Try the Crucial System Scanner tool to find suitable RAM:
http://www.crucial.com/systemscanner

I do not know where you buy RAM from in your country but it is very inexpensive here. 8)

i m using 64 bit from 5 months and not getting any problem. i formatted laptop so i again reinstalled 64 bit few days ago. so can i use if i m not getting any problem?