I’m using windows 8. Whenever I first boot up my computer, this volume bar will appear (refer to the picture). Everything will lag when this happens. It’ll not disappear until I reboot my computer. Virus scan had been done, and windows have been updated to the latest version. I have tried formatting my computer too, but it doesn’t help. This problem started around January 2014. Does anyone here know what causes this? Any help will be appreciated.