Headphone jack sound is coming out "tin-y" with no bass?

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So my Toshiba laptop & windows 8 got that iStart123 virus/browser hijacker crap on it a couple weks ago, I followed a great tutorial online on how to completly remove it & that worked awesome....While I was deleting/removing stuff that was attatched to that, I found a few other things in the registry that I didnt think belonged there so I removed those too

I went to plug my computer speakers back in to the headphone jack & the sound came out, for lack of a better word, "tin-y" sounding & had no bass....Sounds all funky....I cleand the headphone jack & that didnt do anything....I plugged those same speakers into another audio source & they sounded fine...

Does anyone have experience with this type of thing? did I maybe delete a driver or something? very irritating, I use those speakers all the time....

Any info is appreciated.

Please help.

Thanks!

I didn't find the right solution from the Internet.

References www.bleepingcomputer.com/forums/t/547793/headphone-jack-sound-is-coming-out-tin-y-with-no-bass-driver-problem/

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