When cutting on the power button the machine will boot up just so far and then the screen goes to blue

When cutting on the power button the chime will sound

The apple logo will appear

The spinning wheel will appear and spin

The Mac OSx Will appear on the screen

The load bar starts to load and then the screen just goes to blue.

So far I have perform these test:

PRAM / NVRAM after this test the curser does come on the screen but nothing more.

Power on Command - hold R

Power on Command -hold S then typed in fsck-fy

Power on -hold D

Power on - hold shift key

My screen went blank after following instructions from a CLEAN YOUR MAC site that walked you through procedures to clean your Mac. After following instructions rolls and rolls of numbers, words and symbols scrolled down the left hand side of the screen and the screen went blank and this is where remains.

Here are some of the instructions that I followed to Clean Mac:

Disk utility-click Mac HD-look for verify disk-click-when done will say repair

Click verify disk permissions-hit repair

Go to finder--hold down option key-go to library a big file will open-double click APP support-go to sync services

Hold down command key-tap letter I - to see how big file is if it's too much stuff just delete contents not folder.

In library go to iTune you don't need.

In library go to iMessage's and cleanout.

Time machine editor - download folder-look for DMG files-trash them-I quick trash- together hit command delete.

System preferences-go to users and group. To get rid of stuff and users click lock use minus symbol to delete.

In iTunes--go to the click duplicate items

The END.