encryption

I am running a lenovo T530 windows 7, that had symantec encryption software on it, yesterday one of our IT guys stopped in and said you don't need that and uninstalled it.  No issues, the hard drive decrypted, today my company pushed a patch so machine needed restarted, when it restarted the encrytion software wanted to run again, so i called the IT guy and he uninstalled the program.  Little later I restarted my computer, and my desktop and program list are blank.  I called the IT guy and he did a system restore back to a previous date.  My desktop is populated but nothing works right.  When i go to computer manager i get a message Could not load C:\program files (x86) common files\pgp corporation\string\pgpmn.en-us.str...that lead me here, please tell me there is a way back.