Some of the software like iTunes, real player, Google earth is missing from my computer. Desktop short cut remains same, but the actual program files content is either missing or not opening from the exec file from program files. There is only one system restore point generated by the system 3 days ago and restoring to restore point didn't help. But other programs like mac fee, M YOB, office is working fine. I scanned the system with built-in updated Mac fee and virus scanner of bit defender and kaspersky and no viruses were detected. Please help
Check Programs and Features in Control Panel to see whether these missing programs are still installed or not.
Other user could have uninstalled them.
Also check timestamps of directories remaining after programs. Directory timestamp is modified when content of directory is changed. This could give you an idea about last date of manipulation with these program directories.