Windows 7 - Windows 7 from home basic to home premium

hello all,

i m using a dell inspiron m101z notebook which has windows 7 home basic prebuilt. now i got a very new Windows 7 home premium dvd. and since yes i m not very good in all this computer stuff i have opened my own topic so that things bcom clearer to me.

i want to install home premium so how can i do it if i dont want to lose my files on the laptop. specially some dell softwares like webcam and all.

i went thru this tutorial. does this do the needful. it is ok i dont need to format my HD. but do i need to backup? also the notebook i use has only C drive n no other drive.

Clean Install Windows 7 from the Windows 7 Desktop

Take a look at this:

No install files needed.
Only the Upgrade key is need.
Anytime upgrade only adds-on the Programs & Features from version to version.
Windows Anytime Upgrade - How to

but i m not upgrading it thru anytime upgrade in windows. i have a complete new DVD.

If you wont to reinstall all the software, you can clean install with the DVD.

I did not think

ther was much difference between Home Basic & Home Premium on a low end computer.

no i just want to turn home basic to home premium , thats it. will the dvd key work in anytime uograde.

Yes, it will.

searching all over the internet i find that its not possible. i ll need to use the dvd anyways.

I wrote the tutorial using a full key.

well thats nice then can i have it

edit:

its no use. i tried, the upgrade fails.

can someone make it easy for me to do it using the dvd.