The answer is simply no. One NEVER writes or repairs a HDD before they get what they can't lose on backups. And notice I used the plural of backup.
We have a lot of options from booting a Live CD to get such onto SkyDrive or Gdrive or Dropbox.
In fact, why isn't what you can't lose backed up?
i was using my laptop and then it froze, i pressed the power button to shut it off and when i turned it back on it says "Launch Starup Repair (recommended)" & "Start Windows Normally" When i go to Startup Repair it goes to Windows Boot Manager and it says "Windows has encountered a problem communicating with a device connected to your computer" "Status: 0xc00000e9, Info: An unexpected I/O error has occured." and Start Windows Normally you just see the Windows logo flashing over and over doing nothing.
some people would say just buy a new hard drive but this happened to my friends laptop and the people he took it to said it was the hard drive but he tried re-installing windows 7 through a usb stick and it worked, i didnt think it was the hard drive because last time i had a failed hard drive it was making clicking noises.
anyway i havent tried re-installing windows on mine because i have a lot of important stuff on it and i want to try and save whatever i can unfortunately i dont have a hdd usb adapter im considering investing in one after this fiasco, does anybody know a way how i can fix my hdd without having to wipe it? Thanks a lot guys