Temporary Files

I've been wondering, when it comes to the Temporary Files in the system,is it safe

to delete ALL of them? I've been hearing rumors that it's "99.99%" safe to do so.

Yeah just usually all the files in C:\WINDOWS\TEMP\

Simply I just hope deleting all the TEMP files wouldn't cause any system harm.

Also, are the hidden files within the C:\WINDOWS\TEMP\ directory going to be

deleted by CCleaner? Like,will the program itself delete the files that should be

deleted?

Yeah that's all I need to find out, thx for reading. ^,^

It's safe to delete anything in the temp directories.