All Windows versions loads many services at startup, most of them (Not all) are essential for the core system features . By disabling unnecessary services, the performance can be improved significantly, especially on computers with low system resources , here's some of the windows services which are generally enabled by default that you can disable safely:Print Spooler (if you don't use a printer or print-to-PDF)Bluetooth Support (if you don't use Bluetooth)Remote Registry (it's not usually running by default, but you can disable it for safety)Remote Desktop (There are 3 services. If you don't use Remote desktop, disable them) but disabling a service was not for the novice (now it is)Easy service optimizer (Eso) is a portable freeware to optimize almost all Windows services (except windows 98 and below) and It does not require any technical knowledge , It is very safe to use because it changes only the startup type of the services and You can restore them easily , you can create your own list or customize selected one