I use vaio vgn-sz79mn ... windows vista business
and every time i try to upgrade or do clean install for my windows to windows 7 this happens :
1- everything works perfectly fine.
2- after about a month the laptop starts to become very very slow.
3- after that i get the blue screen of death and i lose everything.
this happened to me like 3 times.
now this is how i upgrade my windows :
1- i insert the CD and let it do it's job.
2- i download the drivers from Sony's website and i install them.
yeah i forgot to say that with windows 7 every time i shut down a message shows saying :"there is a program preventing your computer from shutting down do you want 1- force shut down 2- cancel ( i think ) "
and then in less than a second the laptop shuts down without letting me to choose from the two options.
and i didn't experience a similar slowdown with Vista. and i use the original hard drive + 1TB external hard drive from WD
and of course the M2 adapter that comes with the laptop i leave it always inside the laptop .
the 1 TB WD http://globaltech-ow.com/Products/St...images/TTB.jpg
the M2 http://ecx.images-amazon.com/images/...500_AA300_.jpg
and i installed windows 7 on other laptops using the same CD and their working perfectly fine.
finally , English is my second language so sorry if i was not clear.