FAILING OF MAINBOARD CD REINSTALLATION

Dear Forum,
After erroneous uninstallation of C-Media audio drive, the motherboard CD reinstallation failed & caused serious systemic error & Windows Media Player or any media player cannot read any media file along with CD-ROM/DVD-ROM became crashed & USB 3G Donggle failed to configure, but pen drives are still detected & working . In that situation I downloaded all the motherboard drivers from manufacturer's website & reinstalled but due to the old version of Intel Graphics Chipset(version:6.13.01.3317), skipped the chipset installation(my version:6.14.10.3762), but still the WMP cannot play audio files but play saved & VCD video files & USB 3G Donggle still failed to configure, though the CD-ROM detects both audio ,video & software discs. Whereas DVD-ROM only detects the audio CDs & VCDs with in built media players. So, kindly help me to solve my problem. Earnestly waiting for your precious reply.

NB: My USB 3G Donggle: HUAWEI E1752
Motherboard: Mercury PI845GLM-P chipset[version:6.14.10.3762,Intel Pentium 4(478 pins)], Celeron D processor 2.4Ghz.