is that the service with WLAN Auto config under it? if you look in task manager, and click the arrow next to service it shows the process under it
Try doing a clean boot and see if its a program loading at start up:
https://support.microsoft.com/en-au/kb/929135
right click start button
choose command prompt (admin)
type
SFC /scannow and press enter
this scans system files and may fix this behaviour
https://answers.microsoft.com/en-us/windows/forum/windows8_1-performance/100-disk-use-and-slow-response-freezing-after/e7ef57f1-6a4f-4f89-b461-7c930f5df337