accelerometerst.exe is a windows process file, accelerometerst.exe is a System Tray Applet from Hewlett-Packard Corporation part of Mobile Data Protection System. You can usually find the accelerometerst.exe file in C:Windowssystem32 folder. If it is found anywhere else,please know that accelerometerst.exe may be a virus, adware, trojan, or worm. Check your PC with an advanced antivirus program to ensure it is not infected. How to check whether accelerometerst.exe is a virus.