Hi,
My laptop config is as follows:
Windows 7 32 Ultimate on Acer Aspire 4730z
2GB Ram,
2.2 Ghz Dual Core...and 320 GB Space
I want to install windows 7 64 bit ultimate version on my laptop which currently has 32 bit win 7 ultimate version. Is it possible to install 64 bit ultimate version as an upgrade ?
I want to use adobe video editing software on my latpop. So, I recently purchased additional 2 GB Ram for my laptop. I came to know that 64 bit version windows operating system uses Ram and other resources efficiently and can perform faster. So, I am looking for guidance for installing windows 7 ultimate 64 bit edition on my laptop with 32 bit edition.
Anyone please guide me...

I know how to custom install windows 7 but never upgraded from 32 bit ultimate to 64 bit ultimate. Please let me know if this is possible without formatting the laptop. Because, I do not want to lose the installed programs.
Thanks in advance.