Tech Tip: Stop Programs Running at Startup
One reason that your computer may be running slowly may be too many programs set to run at startup. Here’s how to disable those programs to clean and speed up your computer.
On Windows, right-click the windows icon and select Task Manager. Click the Startup tab. Click unnecessary apps and select Disable. Windows will even tell you the level of impact that specific apps have.
For Macs, navigate to Apple menu > System Preferences > Users & Groups. Choose your user account and click Login Items. To disable a program, click on the title and select the minus icon.
Adapted from http://support.apple.com/kb/PH25590?locale=en_US and http://support.microsoft.com/en-us/help/4026268/windows-change-startup-apps-in-windows-10.