Can I remove startup application "issch.exe - InstallShield Update Service Scheduler" to speedup my computer and reduce security risk?

Startup application issch.exe is the InstallShield Update Service Scheduler. issch.exe is running as a scheduler to keep InstallShield automatically updated from InstallShield online server. You definitely should remove issch.exe from the startup application list to speed up your computer and reduce security risk. If you need to update your InstallShield software, you can always run this process whenever you want to.

issch.exe startup configuration info:

Name: issch
Command: C:\Program Files\Common Files\InstallShield
   \UpdateService\issch.exe -start
Location: HKLM\Software\Microsoft\Windows\CurrentVersion\Run
Registry name: ISUSScheduler

issch.exe process and program file info:

CPU usage: 00 %
Memory usage: 1,184 K
Launching method: System Startup - issch
Directory: C:\Program Files\Common Files\InstallShield
   \UpdateService
File name: issch.exe
Description: InstallShield Update Service Scheduler
Size: 81,920 bytes
Date: Tuesday, July 27, 2004, 4:50:18 PM
Version: 3.10.100.1155
Company name: InstallShield  
System essential: No
Virus/Spyware/Adware: No

More information on ssdiag.exe.