The new volume slider in Windows 10 is pretty, but if you're hankering for the old look or that handy link to the full Mixer, you can get the old one back with just a bit of Registry hacking.
Editing your Windows registry sounds more complicated than it actually is, but if you've never done it before you might want to give this explainer a quick read first. Pay particular attention to the part about backing up the Registry or creating a System Restore point just in case you need them.
That said, our friends at WonderHowTo put together some easy-to-follow instructions on reverting to the old style volume slider in Windows 10. You'll just need to add one Registry key (a DWORD value named
EnableMTCUVC in the
HKEY_LOCAL_MACHINE/SOFTWARE/Microsoft/WindowsNT/CurrentVersion/MTCUVC folder) and set the new key's Value data field to
0. Hit up the full article for instructions and illustrations.
How to Revert to the Old Volume Slider in Windows 10 [WonderHowTo]