i also find the same problem with our computers...
not only that it restricts opening .bat files but also other files as well.
there are some restriction software i found out.
and it even restricts opening and reading the software...
....boot keys are also disabled...
....we only can use the Microsoft offices program other than that are nothing...
however...though the the software is tough..the computer itself is faulty..
what i did was to run any office program...in this case..microsoft word..then i deliberately
pull the plug, causing the computer to turn off, unexpectedly
the nxt time i turn it on, it produces an error(or things like that)
telling...
American Megatrend
blah..blah..blah
....
...
...
then,
delete=set up
...
this brings me in the heart of CMOS
then instinct follows..
i never change anything though, i am afraid i might be kick-out of school
but i know it is there!
hope this help!
i learn this when i was twelve
the same thing i did to my uncle's windows95
sadly, i totally broke the computer
through Christ our Lord...happy hackin'