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I have Apple computer &nbsp;that was used for Marketing. &nbsp;On the Apple soneone installed Parallels software on it so that they &nbsp;could use it &nbsp;for Windows OS applications.<br />
<br />
My boss wants the Parallels software removed and the computer taken back to its original settitngs<br />
<br />
It has OSX 10.9.5<br />
3.2 GHZ &nbsp;with an I5 processor<br />
<br />
Can someone help me out?
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I have Apple computer  that was used for Marketing.  On the Apple soneone installed Parallels software on it so that they  could use it  for Windows OS applications.

My boss wants the Parallels software removed and the computer taken back to its original settitngs

It has OSX 10.9.5
3.2 GHZ  with an I5 processor

Can someone help me out?

Restore MAC  computer back to its original OS

Apple's early computers ran on a variety of operating systems, including a Pascal version and one based on CP/M, before releasing its ProDOS with the advent of its 16-bit computer. With the release of the Lisa, which had its own OS, Apple and computing entered the graphical age; it was followed by the Macintosh, which offered a series of "System" operating systems. Other Mac operating systems included PowerPC until Apple acquired NeXT and folded it into the Mac OS. Current operating systems for Apple devices are Mac OS-X and iOS.

Apple OS

Mac OS X is the desktop operating system from Apple Inc., found on Macintosh computers. OS X consists of a Mach/BSD-based kernel, operating system interfaces primarily based on FreeBSD and additional frameworks (written in C, C++ and Objective-C providing user interface and application-level services.