Is there any way to reset the default volume in windows XP. I changed the default properties and

I am having problem with using it as the sound quality is really poor.

Some days ago my motherboard was not working at all. Then I set a new one for my computer. Motherboard disc has been installed but realtek audio manager does not working.  How can I revive my sound system?

 I keep getting an error message say” run DLL as an App failed” when I try to open the desktop tab in my display properties. I am unable to change any of my desktop items dues to this

I've used speech recognition system in windows 7.

But I can not find the option to start speech recognition system in windows XP.

How is it possible?

Each time I boot my PC, Windows gives a “Windows protection error while installing Device” message. Restarting  the computer or reinstalling the software does not help

How do I prevent the Task Scheduler from loading at startup?

Is any software available for removing shortcuts of programs at startup?

My Windows Explorer opens at startup even if there is no shortcut in startup folder.

My PC was so slow and therefore, I wanted to format it and reinstall Windows XP. I booted the PC from its DVD rom and while trying to copy files, it stops and does not go further.

I tried different xp cds and distinct CD drives, but the result is the same. Again, I connected the hard disk to another PC and tried to install XP, then everything went well. I could successfully install XP.

When I reconnected the hard disk to original PC, when loading XP, it gives the blue screen. Kindly tell me a solution.

Please help.

Thanks

My machine has Windows XP.

The welcome screen, i.e.. the black screen comes but the blue bars goes on forever and its stuck.

At the boot up my computer displays a message "ie3sh.exe. Unable to locate component BHO-DLL". This appears well before loading the OS