Apologies you feel this way. Typically BitBucket is better place to report errors as it easier to see them then on the forums.
First step to resolve this would be to go ahead and run the installer again, just to rule out something isn't corrupt in your install. Second is to make sure you don't have any folder set to read only. Right now that error report reads like an IO issue reading/writing to a location. Also if you have plugins, I would remove them just to rule it out as a possibility.