thx for the reply, I was thinking of sending it back for repairs however it's closed on weekend so I thought I might as well try something. As you mentioned removing the battery and put it back with adapter, well it is impossible as mine is a desktop and it doesn't have a battery pack. However I did try switching off the power supply then holding the power button on my desktop for 30sec so as to "hard reboot" my pc, before I switch back on the power.
Sadly that did not work out as planned and the problem still persists, I could not restore my desktop using acer eRecovery management, I tried the option restore to factory default and it does not work for me.
Is there other alternatives?