Upgrading dv7 system hardware

Question

I have an old HP Pavilion dv7-1279WM (Intel) notebook computer that has been very reliable... however, it needs some upgrading to keep up with what I use it for now.  I've been reading the dv7 manual and trying to figure out what will work in it, but I have some questions:
RAM - currently only 4 GB, at 800 MHz.  I'd like to upgrade to 8 or 16 GB, preferably 1600 MHz or at least 1333 MHz.  Can it handle that?  Some places say it can only go up to 8 GB, but not sure about the MHz.
Hard drive - currently 500 GB, 5400 rpm, and I'd like to upgrade to 7200 rpm; would there be any problem with that?  I've found one that is the right size and thickness...
Processor - the dv7 manual online shows this processor is compatible:  Intel Core i7, 2820QM, 2.3 GHz.  But is that true for an older dv7 like mine?  
And probably an upgrade to Windows 7, too.
Bottom line - am I kidding myself that this old machine can handle that level of upgrading?

Answer 1

Making hardware changes to a laptop is near impossible.  Making any changes to a laptop that old, even if possible would not make economic sense.
You could possibly upgrade to Windows 7
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