MAC operating system----Delete files that do not remove the problem, error code-43

About this problem, yesterday's time has been met, but restarted the computer results, can be normal deletion of unnecessary files, did not expect this morning when the boot up again this situation, it seems that I have to study, or the daily command line delete too troublesome.

Some degree of search to get some of the solutions are basically using sudo rm-rf "filename" to delete, or did not find their own satisfactory solution, then the rest of the problem can only be explored.

I also unknowingly found in the login window this side there are two, one is the administrator rights of the login, one is the guest permissions of the login. Don't say much, or just say the solution:

My current system version is: OS X EI Capitan 10.11.1 Upgrade This system after the original system comes with the guest user is not closed, that is, I was in the deletion of the time is in the Guest user's permission under the operation, so in the final analysis is the issue of permissions.

Steps to resolve:

System Preferences----> Parental Controls----> Click the small lock in the lower left corner, enter the password to unlock it (your power-on password)----> select the Guest user above, click the minus sign in the lower left corner to delete the guest user---->ok

is actually a matter of authority. Very simple.

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MAC operating system----Delete files that do not remove the problem, error code-43