Help with speakers and Realtek

[ilikecupcakes]

Hello! I am having a problem that is really annoying and I hope somebody can help me fix it. Anyway, I noticed that lately I've had a little trouble with my microphone so I searched up help and people kept saying I should update my Realtek audio driver, so I did. Problem is, now nothing works. Realtek (or any other device) won't detect my speakers or microphone. I have tried installing other versions, checking if my drivers work properly (according to windows they do) and I've tried pretty much everything. I don't know what to do, so please someone help me! My Laptop model is Acer Aspire 5750G and I am using Windows 7 Home Premium 64bit. Here are also some screenshots which might help (Also, I'm Norwegian, I hope the language on these screenshots aren't a problem)

 

[kellymac35]

How long ago did you do your first realtek driver change? If it was recent then look for a restore point and restore your Acer to a point just before making changes.

 

[fireberd]

To add, in most cases the Vendor supplied sound driver (Acer in your case) should be used. Non Vendor drivers many times do not work or work correctly.