Computer got Safari hijacked by the "police" virus. Temporary solved by using Firefox instead. Questions:

  1. Read on numerous forums that you could reinstall OS X by holding down cmd + R keys. However, this computer ignores this.

  2. Also tried the CD/DVD which came with the computer. Clicking on Install OS X renders something like You cannot install this version.

  3. Also tried starting with the CD/DVD by holding down the C key but that makes the screen go all gray and stay such.

  • Wait. Are you sure this is actual client-side malware? Everything I've read suggests it's just a page Safari restores when you restart it, and can be definitively cleared out by selecting Reset Safari... from the Safari menu. – zigg Mar 5 '14 at 11:35

If you are having issues during installation of OS, run Disk Utility from the Install DVD and see if there are any issue reported from checking the disk.

If you have a backup of all your files on an external drive already and are comfortable with erasing your internal drive then you might have to erase and install the OS from the DVD.

Booting with alt will give you a listing of all bootable volumes your Mac has including the main hard drive partition (10.8.5), optionally it can show the Recovery HD, and with the install DVD inserted you will see that as well.

If you see the Recover HD then select that and proceed with OS install. If it doesn't show up then use the DVD as your best tool.

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  • Hello, Thanks for your reply but please read my questions again. Your proposed answers are already tried and does not work with this computer.Regards Peter – Johnny Dec 12 '13 at 12:47
  • Sorry, Alt alternative is not tested – Johnny Dec 12 '13 at 12:48

Are you sure that command-R doesn't work? If you have an Apple Wireless keyboard or another wireless keyboard, start holding the keys after the screen turns on and the startup sound is played. If that doesn't work, and you also tried holding option during startup but the recovery partition was not shown on the list of startup options, you could try using Recovery Disk Assistant to create a recovery partition on an external drive.

Simply reinstalling OS X won't probably get rid of the virus though. Erasing and reinstalling OS X would, but if you restore all your files from a backup after it, the virus might also be restored.

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