I acquired a new PC (Dell Precision, powerful) last year and I have yet to switch to using it.
It came with W8.1 and the free "upgrade" to W10. I did disk images of the pristine initial state (8.1), and of the immediate state post the upgrade to W10. The latter was like wading through treacle. I went back to 8.1: not much better.
I "reset/reloaded/" the W10 setup, and installed again ... and got something I thought was OK.
I'm now in a quandary: I've installed tons of vital software and configured it... and I still find that it takes 9 s for my W10 to load up Firefox (using Autohotkey command Win+I, as configured by me).
This compares to 2 s on my current machine with W7.
I notice that booting is longer than I'd like, but it actually appears to be the process *after* booting which is the headache. It takes forever to "settle down", with the hard drive light flashing for minutes after booting.
I have visited numerous sites about how to improve the boot/general performance with W10... nothing seems to work. It is clear to me that the machine is doing something (what?) when it should just be doing the stuff I want.
Any ideas before I ditch everything and buy a W7 install disk?