The Issues section will help you find errors and old entries in
the system registry. Whilst this will make sense to an advanced
user, to the beginner a lot of the options will mean nothing. That
is why CCleaner includes a complete backup option, so in the rare
event you remove something that you later need - you will have a
backup to restore from.
To use, simply press the "Scan for Issues" button and once completed press the "Fix Selected Issues" button. You will be prompted to backup and helped throughout the process.