Brand new Win 10 computer runs slow after setup

I downloaded Process Explorer successfully. Anvir Task Manager generated this message:so I aborted.
Process Explorer looks very complicated, can either of you give me specific instructions in how to use it?

There is nothing downloading.

Slicendice:
After I re-installed Windows 10 on July 13, the only anti-virus that has been on this computer is Windows Defender, and I plan to use it alone in future. Neither Cyberreason nor Avast appears in Programs and Features nor in the search box. Current Task Manager Startups is . Task Manager Processes sorted by CPU usage 1 hour ago is , 5 minutes ago is . I am up to about 100 hours of work on setting up this computer. Since I re-installed Windows 10 on July 13, I am sure I have accumulated at least 30 minutes of sitting with my chin in my hands watching Task Manager Processes, with the computer at idle and nothing open but Task Manager. The only processes that appear near the top of the list with any frequency are System Interrupts, Desktop Windows Manager, and processes starting with "Service Host : "

wvbirdman said:

something went wrong right after I installed AdwCleaner.

\.

Adwcleaner is a a tool for cleaning up an infected system. It does not install and is not needed for routine cleanups. Much less running on a new system.

Slicendice:
Is the computer running slow at the moment? Windows speed is ok. Browsing speed is ok, but I occasionally get "not responding" messages, and earlier today the browser froze for 10 minutes and required a restart.

One more thing you could do is to go to the HP support site and download the latest BIOS. HP has recently released a new BIOS that should improve stability. Will do.

I assume your laptop is a HP Notebook - 15-f233wm. It is an HP 15-1233wm.

Thanks

Porthos:
That explains a lot. I will drop it.
Thanks

Dalchina:
I can't say exactly to what degree the high CPU usage by System Interrupts correlates with hours-long periods of high CPU usage. At my current level of technical ability the only way I could determine that would be to watch Task Manager Processes for hours taking continuous notes. All I can say is that during hours-long periods of high CPU usage, about half the time, System Interrupts is present in the top 8 or so of the processes list (when the list is sorted for high at the top). The remainder of time during hours-long periods of high CPU usage, System Interrupts is about 1% or less.

Thanks for the Process Explorer tutorials. I was able to open and run it. Here is a screen shot of it:




I'm afraid however that using Process Explorer for diagnosis and repair on my own is probably beyond me, and I don't want to impose on your kindness to ask for click-by-click instructions.

To all:

So here is where I am in the overall process:

I spent about 40 hours on my first setup. It definitely had a problem because I experienced slowdown. I spent about another 20 hours attempting to fix this first setup, then gave up and re-installed Windows 10. I spent about 30 hours on this second setup, watching carefully (and perhaps too carefully) for any problem by closely watching CPU usage in Task Manager and Performance Monitor. A sudden rise in CPU usage made me concerned that there was a problem, but I have not experienced any actual slowdown other than occasional "not responding" messages while browsing, and once the browser froze. So at this point I am not sure if there even is a problem. As further high tech diagnosis is probably beyond me, I would be grateful for all of your opinions on this question:

I understand that hours-long periods of high CPU usage at idle with nothing open but Task Manger or Performance Monitor does not tell us what a problem is, but does it tell us that there is a problem?

If you/you all/any of you think there is a problem, I will re-install Windows 10 and start over for a third time. If you think there is no problem present, I will proceed with this current setup, after leaving the computer on for a few days for it to settle down.

PS :
The computer is indeed an HP 15-f233wm. Those numbers sure are small.