First step: Disable Origin In-Game for Dragon Age: Inquisition.
Second step: Look in your computer's Startup folder. Remove everything you don't use on a regular basis.
Third step: Run - MSCONFIG - disable startup items that you don't use on a regular basis (as in, hourly). There are many programs that sneak an updater or a 'helper' program into startup items. Adobe does this routinely with every update. Though Adobe AIR should remain, other Adobe startup items can be removed with no consequences. Apple is another big offender with Quicktime. Quicktime does NOT need to be a startup item in order to work.
Don't forget, you can look up what these items are even if you have just an awkward name and no description, thanks to Google and other search engines. I'd recommend doing so if you have any question at all about what something does.
Use a good registry cleaner like CCleaner. Let it make a backup of the registry before using the registry cleaner tool.
For more advanced users, look up guides on keeping non-essential services from running automatically. Start - Run - Services.msc. Note, until you get familiar with what's on your PC and why it is running, you will need to do a lot of internet searches to learn which items are which and which ones are actually essential. Microsoft's guidance in the user interface is not a bad one, and many services which are critical to running the computer are labeled as such in either the description or the mouse-over pop-up tip.