You might try disabling one or both of them and see if it is faster with out both - but if both were running before the slow down something must have changed.

let the defrag finish
then run a scan with each of those programs - some will miss and another will catch things.
then if clean - disable one or both to see if it is faster.

With most AV pgms you can right click on the task bar icon and a little menu will pop up- there should be a " turn off protection" or "pause protection" and you can choose a time.


Did you do the clean up before the defrag? I think it asks about that before it lets you do the defrag.

if it's still slow it may have gotten some services running that aren't needed and bogging the system down.

you can try ctrl/alt/del {press them all at once}
and a window will open [windows task manager]
the different tabs give different info
but we'll get into that if the other stuff doesn't help.