[advanced file deletion]

The only item under Advanced that you should not check is 'Hotfix Uninstallers', because currently it is buggy, and doesn't delete the right things. It will be fixed in the next version, but if you are using version 1.27.260 or earlier, leave it unchecked.

 

Otherwise, everything else can be checked without harming your computer, although you should only check the items that you are certain you want cleaned.

 

For example, if you check 'User Assist History', your most recent applications list (left-hand side of the Start menu) will be cleared out. This doesn't hurt anything, but if you use those shortcuts, it may be a nuisance to you, so you can leave it unchecked if you want those shortcuts to stay.

 

If you want to know what each box does, simply check it and you will be given a warning about what it cleans. Read the warnings carefully and decide if you really want CCleaner cleaning that item or not.

 

Let me know if this helps, or if you need to know anything else. Welcome to the forum!

 

thank you, thank you, it helped tremendously!

[advanced file deletion]

can someone please tell me what is necessary or helpful to delete in advanced? I have ran all others but not sure what the files are in advanced. Should I check all in advanced?Is there anyway to delete the wrong thing that will be needed to run my computer. thanks for your help, I appreciate it!

Trish