aspire 8730 Volume control issue

khanaamir2

Hello,

 

I have Acer Aspire 8730 laptop, came with Windows 7 home Edition.

If I restore my hard drive with backup CD came with the system everything works fine.

I bought a windows 7 Professional OS and wanted to download as a fresh copy, everything done very well except volume control.

I installed Launch manager but it shows volume control in the middle of the screen when I try to change through volume bar but does not actually low or high volume. Volume control slide bar does not work as it should work so now I have to change volume through volume control in task bar.

Does any one know what should I install in order to properly work Volume control slider?

 

Any help would be highly appreciated.