Windows 10 Appearance

+1
you need 16 GB for 32-bit or 20 GB for 64-bit version.
29 July users will restart their machines and whole magic should happen automatically.

that's the theory :)

Good point. I don't know about that.

it will probably be saved in a folder called 'windows.old'

i use the insider preview since 3 months, i updated from win7 to win10 without lose of my files, they arnt in a backup folder. they were just directly included inside the normal windows 10

It's an upgrade, so while there will be a fair amount of new content, I'm sure other content will be replaced.

Windows upgrades do not delete your data. They upgrade the operating system on your computer.

Just like upgrading iOS or Android on your cell phone (via OTA) doesn't delete your pictures on the phone.

You can choose when to install it. It clearly states this on the first screen.

Not sure if this is safe, but I got rid of it by uninstalling the Windows Update that put it there (KB3035583). I'm definitely not tolerating that little icon in my notification area.

I did the same as Zlia, it got rid of the icon notification then I turned off automatic updates so it doesn't come back

You can end process "GWX.exe" to brutally remove it.
To make it come back, search for "GWX" on the disk that contains your system and launch the application.

aye, |soft said if it ain't showing it ain't up to date

No icon usually means you're using a pirated version of 7.

I actually read it.

i tested too and its not that good, dunno if u notice that some games are 100% muted, and many drivers are not 100% compatible with win10.