With so much and such different errors, I'd do a system recovery back to factory conditions from your recovery media or partition.
Be sure you have a backup (a good acccessible backup!) of all your personal data that you don't want to lose..
I have been getting .dll errors and haven't been able to find a way to fix them. Secondly, I have been getting errors when trying to update windows, such as 80070002, 800F0900 and have not been able to fix them, even going through the Microsoft procedure. Thirdly, I was trying to update my internet explorer to 9 but am getting error Code 9C48 and can't seem to fix it.
Do you have any way I can fix these problems?