hp pavilion 5150

[<soleymanihas@yahoo.com>]

i got an hp a wile ago , and i made setup password
changed.
 
for new password i give one enter and when i restarted
system , it asked me new password . 

i can not enter spacebar or enter , ... and old
password to it. my system was unusable and i can not 
use it.

please say me what i mus do.

by regards 
   hassan soleymani.

   soleymanihas@yahoo.com

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