You don’t have to be an expert to perform tasks like a Safe Boot or setting up a new user account; all you need is the step-by-step instructions in this section. Some of the procedures here help you figure out what the problem is, some of them fix problems, and some do both (as noted in Table 3). I’ve divided them into three groups:
General Procedures: This includes things like repairing permissions, setting up a new user account, and Safe Booting.
Delete Caches and plists: Mac OS X has font caches, but so do Microsoft and Adobe programs; and although Font Book’s plist is practically famous, it’s not the only plist that needs deleting.
Restore System Components: You can’t reinstall “pieces” of the operating ...