sytem starts slow and hangs up easily

I just did a new windows installation on my new pc But windows 10 pro starts up so slow, it almost takes a minute to get to my windows screen Asus TUF B450-PRO GAMING moederbord AMD Ryzen 5 3500X processor G.Skill DDR4 Ripjaws-V 2x8GB 3200Mhz...

I am using 19577. Lately my system hangs for no obvious reason. Normally if I use windows key + F8 it clears. Now that doesn't appear to work. Any ideas please. Thanks

Windows Version 1803 (OS Build 17134.48) From switch-on to desktop start-up sound takes nearly two minutes, and after that there's still a lot of disc activity. Shutdown is equally slow. Once the system has started it takes 30 seconds...

On another window system. The window starts, but it hangs after the window logo with the little dots swirling in a circle. Then it boots to a black screen and just stops. No error code, nothing at all. I already tried to fix startup repair, sfc...

when i first log in, startup seems slower than normal, meaning when i first got pc, everything was very fluid. now, most of the time, feels like molasses. is it due to some programs being allowed to auto start? or other factors? i already did defrag...