Audio/video, How do i turn off the windows startup sound, How do i change the sound output device – Sony VPCSE23FX User Manual

VPCSE25FX, VPCSA4SGX, VPCSE2LFX, VPCSA4GFX, VPCSE2EFX, VPCSB490X, VPCSB4AFX, VPCSE2NFX, VPCSC41FM, VPCSA4MFY, VPCSE2SFX, VPCSA4FGX, VPCSA4EGX, VPCSA45GX, VPCSB4CFX, VPCSA4HGX, VPCSE2DGX, VPCSE290X, VPCSC4AFM, VPCSE2AGX, VPCSA4BGX, VPCSE2RFX, VPCSE2KGX, VPCSA4CFX, VPCSA41FX, VPCSA490X, VPCSA43FX, VPCSE2MFY, VPCSE2JFX, VPCSE27FX, VPCSE2HFX, VPCSB4DFX, VPCSA4JFX, VPCSA4DFX, VPCSA4AGX