If so, you have a warranty or "fitness for purpose" issue.
On my Windows 7 laptop, when I plug in my EXTERNAL speakers, the volume is OK, also when I Skype using my INTERNAL speaker, again the volume is perfectly adequate with my mp3 and audio files. BUT --- when I try to listen to my mp3 and audio files with the INTERNAL speaker, I can hardly hear anything, very weak volume. The volume bars are all on maximum, so what can I do? Strange that when I Skype using INTERNAL speaker, all is OK!