Here is a tutorial for reinstalling the Operating System for Blackberry, on a 32-bit Windows XP to Windows 7 operating system (OS) :
- Connect the smartphone to the computer.
- On the computer, click Start – All Programs – Accessories – Command Prompt. (Note: For Windows Vista and Windows , right-click and run as Administrator.)
- Type cd C:Program FilesCommon FilesResearch In MotionApploader and press ENTER.
- Type loader.exe /resettofactory and press ENTER.