10.8.2 reinstall

[cool11]

I have already installed it. But I 've made a change to mach_kernel file (make it invisible) and I am wondering if there is any way to reinstall it.
How can I do it?

 

[chevalier433]

I have already installed it. But I 've made a change to mach_kernel file (make it invisible) and I am wondering if there is any way to reinstall it.
How can I do it?

start your mac from recovery format your drive download and install mountain lion 10.8 migrate your settings,files and applications from your time machine and update to 10.8.2.