Why bios setup is opening by default?

If I switch on my laptop, it opens to the bios setup without pressing F2 or F8 keys. Where I am concerned ,no application keeps running except sticky notes while shutting down.

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0