se.exe is an advertising program by SearchWebLookup. This process monitors your browsing habits and distributes the data back to the author's servers for analysis.
This also prompts advertising popups.
This process is a security risk and should be removed from your system.
Please see additional details regarding this process.
Non-system processes like se.exe originate from software you installed on your system. Since most applications store data in your system's registry, it is likely that over time your registry suffers fragmentation and accumulates invalid entries which can affect your PC's performance. It is recommended that you check your registry to identify slowdown issues