Impossible to answer, druiaghtagh.
It depends on so many things - the operating system you use, your firewall and anti-virus and so on. I can say for certain that a lot of the processes look like gobbledegook!
And disabling a little thing can cause major problems.
If you have the time and inclination, you could google each process to check that it doesn't relate to something you deleted a long time ago - such as an old printer.
I think the usual number of processes is around 35, without additional programmes running.