Windows 8 can be a bit difficult to use compared to Windows 7. It can be tamed though.
If you install Classic Shell
(free) or Stardock's Start8
($4.99) or similar software then you can have the Start button as it was in Windows 7 and boot directly to the Desktop. You can still play with Metro stuff but it's not forced on you.
Windows 7 Gadgets:
Windows 7 Gadgets are also available if you want them: 8GadgetPack - Gadgets for Windows 8
I find UAC extremely annoying. If you do too then to (mostly) disable UAC
, Press Windows key + R
to open the Run window.
and press Enter
Click on the Tools
Select Change UAC settings
and click Launch
Move the slider all the way to the bottom then click OK.
Some parts of UAC will still be alive, so to completely disable it you need to change a registry key.
Set the value to 0
You cannot use any Metro Apps or the App Store when UAC is disabled. If you've gone this far, you can also disable all hot corners so you will not get any of the Windows Charms popups. Just check the Classic Shell and Start8 options to do this.