BIOS corrupted

I’m using a COMPAQ EN SFF series PC. An error shows “Boot Block Emergency Recovery Mode. System Flash Image has been corrupted. Insert ROMPAQ diskette into drive A and cycle on power on system”.

I have downloaded the ROMPAQ files from COMPAQ website and successfully updated the ROM on the PC, but one day later the same problem happens again. I changed another same model of PC and one week later the same problem happen.

Anyone can help?

thanks and regards,