hotstartuseragent.dll is a Microsoft Windows HotStart User Agent
from Microsoft Corporation
belonging to Microsoft® Windows® Operating System
. Used to aid in the recovery of corrupted or damaged Microsoft® Windows® Operating System data files.
Non-system processes like hotstartuseragent.dll originate from software you installed on your system. Since most applications store data in your system's registry, it is likely that your registry has suffered fragmentation and accumulated invalid entries which can affect your PC's performance. It is recommended that you check your registry to identify slowdown issues