Jayzx's post in Built-in-Camera was marked as the answer
It was not a driver problem, simply not compatible with win8.
I uninstall the Camera app and reinstall it.
I had problems verifying my microsoft account so uninstalling the app was not a option before but finally verified it and now can install from the Win.Store.
It works fine now
Jayzx's post in system32 was marked as the answer
(The problem maybe done by error in uninstalling a software because it happened after I uninstall a software)
I removed the (" ") as instructed and using command prompt (admin) I typed "sfc /scannow" (without the quotation), waited until 100% and showed:
Windows Resource Protection found corrupt files but was unable to fix some
of them. Details are included in the CBS.Log windir\Logs\CBS\CBS.log. For
example C:\Windows\Logs\CBS\CBS.log. Note that logging is currently not
supported in offline servicing scenarios.
after that I typed dism /online /cleanup-image /restorehealth (without the quotation), waited until 100% and showed that it was complete.
It didn't do anything (I think) because it was still the same. I installed Malwarebytes because I noticed that there are softwares I didn't install. After the scan, cleanup and restart, my "system32" problem didn't occur anymore.
It maybe because of command prompt or malwarebytes that it was fixed. I don't know for sure but glad it was fixed.
Jayzx's post in Sound card isn't working was marked as the answer
Some ways to fix:
1. Right click on sound icon found at the taskbar then right click and select Sounds, select the "Recording" tab and then select Microphone, then properties. From the listen tab select Continue Running on battery power, on levels tab increase the Microphone and Microphone Boost, on advanced tab choose the last option in Default Format and select the two box in Exclusive Mode. Click apply and then ok.
2. Open Action Center, then Troubleshooting, then Hardware and Sound. Run as administrator on Playing Audio, Recording Audio, Hardware and Devices.
3. Run Maintenance from Action Center, then download updates at Windows Update.
4. Run Device Manager, shortcut: (Win+r and type" devmgmt.msc" without the quotation). Under Audio inputs and Outputs right click on Microphone (High Definition Audio Device) and select Update Driver Software... First Select Browse my computer for driver software, then select Let me pick from a list of device drivers on my computer, the select next and wait for installation to complete and close. After that Update the same driver but now select Search automatically for updated driver software (requires internet connection), and wait because it may take some seconds or a minute to finish searching online and installing updated driver.