Disk read error occured / White screen / Blinking question mark on a folder

[stinou142]

Hello,

I installed Windows 7 and Mac OSx on Dual boot.
1) A problem arose when starting up. Sometimes the screen freezes after i have selected Windows 7 boot on BootCamp.

2) Second problem, when booting the screen is white and doesn't change.

3) Third problem, "Disk read error occured". This is the message that appears on the screen when booting Windows 7.

4) Fourth problem, a blinking folder with a Question Mark on it.

Please help me with these problems.

If you can resolve only one problem that is already great.

Thank you for your help.

Stinou142

 

[MacDawg]

Here is the support article for the blinking question mark

It means that a bootable OS is not found

If you hold down the option key when you boot, do you have the option to boot into OSX?

 

[stinou142]

If I press ALT it's display boot partitions(Windows 7 and Mac OSx)

When I select Mac OSx It boot without problem.

I already have reset PRAM and repair disk without success.

Have you other ideas ??

Thank's

Stinou142

 

[MacDawg]

If I press ALT it's display boot partitions(Windows 7 and Mac OSx)

When I select Mac OSx It boot without problem.

I already have reset PRAM and repair disk without success.

Have you other ideas ??

Thank's

Stinou142

If your OSX boots with no problem when you select it by holding the option key, then I would run Bootcamp Assistant and delete your Windows partition and start over. Print the Bootcamp Assistant directions and follow them to the letter.

 

[stinou142]

I Haven't time to repeat install beacause I have got 11 on 25 Mac to repair.

14 IMac works perfectly on Windows 7 and Mac OSx.

Thank you !

Stinou142