As explained in Windows 8 pro review (upgrade XP to Windows 8 with Classic Shell) ">this FR thread. : In from what i see using the Window 10 preview, as explained in this thread , shows little change from Windows 7. Though that was an early build of WTP.
The latest build (11041) can be had here .
If already running WTP and want to upgrade, see here . If you are having trrouble doing so, read thru here .
The minimum system requirements (see more at link) for Win10 are
Processor: 1 gigahertz (GHz) or faster
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RAM: 1 gigabyte (GB) (32-bit) or 2 GB (64-bit)
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Free hard disk space: 16 GB
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Graphics card: Microsoft DirectX 9 graphics device with WDDM driver
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A Microsoft account and Internet access
Best to install it on a second hard drive (HD), with your defat OS drive unplugged until after you install WTP. Then use the F11 or whatever key your BIOS has to choose what HD to boot from. Win/10 is expected to be provided free to W/8.1 and W/7 users this summer, for a year.
The main advantage being the service life will go on for a longer time (even if the country does not, or a EULA forbids criticism of sodomy, etc.)
Below is the difference btwn the defaul WTP start menu and classic shell. Which would you prefer? (You can nuke items in either one.)
" 
" Another of many safe and proven freeware enhancements is the Windows Club Right-click extender
" Also useful is Ultimate Windows Tweaker 3 for Windows 8
Thanks God for such to be used for good! And of which PaleMoon/Waterfox/Firefox is the tops for the Internet, if you know the extensions. Ask me.
Now here are a few useful paths (replace username with yours)
C:\Users\username \AppData\Roaming\Microsoft\Internet Explorer\Quick Launch
C:\Users\username \AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup
C:\Users\username \AppData\Roaming
C:\Users\username \SendTo
C:\Users\username \Desktop\
To run more than one Firefox install, change the shortcut link to,
"C:\Program Files (x86)\Mozilla Firefox\firefox.exe" -no-remote -p