i have toshiba laptop and after some time when i open it brings black screen and it says disk error and click crl alt delete to restart.what can i do.

You are not providing enough information to help you. I assume you are just closing the display, probably putting it into sleep and later hibernate mode. That said, I think you need to be sure you have enabled a hibernate file. If not, then before you shut the cover, shut down the system completely.

Be a part of the DaniWeb community

We're a friendly, industry-focused community of developers, IT pros, digital marketers, and technology enthusiasts meeting, networking, learning, and sharing knowledge.