Windows Anytime Upgrade - How to

i want to upgrade my os from win 7 home premium to professional.

will I lose my data especially in C: ?

just making sure, I know you already wrote there is no file lost. but, just wanna get reply until I'm sure

thanks beforehand

Decided to replace my ancient desktop with my much newer laptop for... well, desktop purposes, then found out I can't quite make inbound RDP work under Windows 7 Home Premium (workarounds keep breaking with new patches apparently) and that MS themselves appear to be pushing their new product quite hard, so the Windows Anytime Upgrade 'purchase key' option leads you to a Win10 page...

I'm not in the habit of installing new windows for a while as they tend to have teething problems, so are there any legit places left where you can get a Win7 Professional or Ultimate key, hopefully for a reasonable price?
I noticed MSDNAA keys don't work with Anytime, and I prefer not to have to go through a full reinstall :)

A laptop was upgraded from 7 home to 7 ultimate with "upgrade anytime". Now!...why is it that i still mis "service Pack 1"? (SP1)
:^/ So iTunes cannot be installed "SP1 required". So i go to "window update". Sigh! i start it. With fabulous internet speed connections, "search for updates". More than 24 hours later still nothing, the green bar is still moving from left2right and still searching. What is this with this crappy Microsoft s***? Where can i download SP1 please?

Zer07 said:

A laptop was upgraded from 7 home to 7 ultimate with "upgrade anytime". Now!...why is it that i still mis "service Pack 1"? (SP1)
:^/ So iTunes cannot be installed "SP1 required". So i go to "window update". Sigh! i start it. With fabulous internet speed connections, "search for updates". More than 24 hours later still nothing, the green bar is still moving from left2right and still searching. What is this with this crappy Microsoft s***? Where can i download SP1 please?

here (directly from MS)
it is the full SP1 package