The printer or scanner which you have connected to the system might be in an error state or there might be pending jobs which aren’t getting through.If there are wrong parameters or the service is stuck at a specific point, you might experience high CPU usage. Misconfiguration of Windows Image Acquisition API.Listed below are the reasons because of which majority of the users face the problem: There are very straightforward reasons why you might experience the high CPU usage of Windows Image Acquisition. What causes high CPU usage by Windows Image Acquisition?