Greetings,
On the password: Go into your BIOS (usually pressing the ?Delete? key upon power up), and there are TWO things to do. First there is a setting where you define whether the password is applicable to the "system" or "setup" This is usually located in the ?BIOS FEATURES SETUP? and the ?Security Option?. If you choose "setup" the user will be prompted for that password when he/she attempts to enter the BIOS. (I do this on all my machines, by the way.) If you choose "system" the password prompt will appear almost immediately upon turning the machine on (or restarting as well).
The second BIOS setting is the password itself. There is a BIOS category for the Password Setting
On the email attachment: You get that prompt when the attachment was created with a software that is not resident on your computer. Oftentimes, however, your "word" program will open other text documents even though they may have been created on different software. The same applies to picture files. So you?ll just have to know if the attachment is a text or picture document, and use the appropriate program to open it. Still, you may not be able to open it without the correct software.
Regards,
Maxwell