Running CleanMyMac2 and Backing Up
Should I run CleanMyMac2 on my iMac desktop computer to free up space to download Yosemite? Currently have Maverick, 10.9.5 Version Safari 4GB, Storage availability 951.73GB of 999.35GB?
Is it necessary to run Backup before installing Yosemite?
iris
iPhoto '11, Mac OS X (10.7.5)