Hardware not detected

Hello,

I am not able to program my altera fpga design board. I was able to do it earlier and I had tested many of my designs. However, very recently the board is not detected.

The board was detected and programmable in my colleagues computer. So I assume it's a driver issue.

However, the USB blaster driver cannot be removed nor updated in my computer due to some weird reason. The program never responds when such an action is performed. I even tried to download a new programmer from Altera and even restarted the computer, power-cycled the board but still the problem persists.

I have many versions of Altera Quartus2 installed in my computer, and hence I cannot remove all of them.

Can any one suggest a solution.

Thank you.