Western Digital is warning owners of its hard drives that upgrading to Apple's OS X Mavericks might not be a good idea right now, warning of data loss when upgrading to Apple's freshly released operating system.
It affects WD's Drive Manager, Raid Manager or SmartWare applications are installed. The company e-mailed its customers after it had noticed its support forum go crazy with users reporting data loss after upgrading to Mavericks with the aforementioned applications installed. WD says if users uninstall the applications, then they are safe to upgrade to Mavericks, without losing their data.
If you've already made the jump and suited up for Mavericks, then you should remove those applications immediately to ensure your data is safe. There's a fix on the way, but it's not here yet.