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#11
The advantage in using a custom Toolbar is that it is native to Windows.
Moving it to the left is just a drag operation
unlock the Taskbar
grab the left side of the toolbar (a move arrow appears) and drag it as far left as possible
-> it's a bit tricky since the drag often stops midway - just grab it again and drag it further left
then
grab the right side of the toolbar and drag it as far left as possible to collapse the toolbar contents.
You can put as many shortcuts s you wish in the toolbar for easy access.
There's also a nice utility called Bins that helps manage items on the Taskbar - it's not free, but it's not expensive either
Bins
I haven't tested it on Win10 though.