Updating flash player from the harddrive
Stor is a driver that has the firmware bug associated with high disk usage.
Due to the number of updates in the background, and numerous changes with the settings after the updates, the disk usage stays at 100%.
That is why this service is also known as Search Indexer.
The benefit of the Windows Search is that it speeds up the searching of your files.
If it doesn’t affect your system speed or disk usage then you can turn it back on by going back to services and selecting Automatic as the Startup Type.
Disabling Message Signaled Interrupt also solves this problem for a lot of users.