Hi Oleg,
Can you try this in a different browser instead of IE, if that doesn't help then try below steps.
Can you please go to the ColdFusion 10 installed directory
ColdFusion_root\cfsuion\bin
There is a batch file name "passwordreset.bat" just double click on it, that will launch a command prompt select the option 1 and then type your new password.
try again and let me know if that doesn't help.
Regards,
Priyank
