Tips for data recovery include turning on the computer after the crash. If you were working on a document when the crash happened, open it, and check what information was lost. Microsoft Office Word might have several versions of the document available, and you can restore one of them.
Try to load the computer using the Last known Good Configuration startup option if the computer doesn't turn on after a crash, or if Windows doesn't load. The computer is going to use the most recent settings that were set on your computer the last time it worked.
If the computer still doesn't turn on, call the computer manufacturer's technical support team. The staff member can usually identify the problem and recover data even in the case of a hard drive failure. Be sure to write down all the messages and codes the computer displays after the crash, and give this information to the support team. This helps the team to identify the problem faster and more accurately.
There are many recovery tools available online for download, so if you have access to another computer, download a tool to a flash drive, and follow the instructions for data recovery. There are also computer companies that offer data recovery services. However, it usually takes these companies several days to recover the data, and these services aren't free.