and thanks for your response, I did what Rumpty said, but at this step :
Open the Security tab and click Edit.
Click on Add and type Everyone and then click OK.
A user icon should appear in the box with Everyone beside it.
Allow Full permission for Everyone. (This excludes Special permissions.)
The computer should then go through the process of setting permissions for the drive folders. The process stops half a dozen times with errors but just click Continue.
Click OK to finish.
When I click "Continue" It gives me error, this error :
I think something is wrong with my laptop, but I don't know what, please help me I'm desperate.