In regards to post #7, BIOS/UEFI passwords can generally be reset to nothing by opening up a PC and taking out the BIOS battery, but you need to know the model of the PC so you can carefully look online for EXACT instructions for the make and model about how to open it, where this battery is located and the exact procedure for safely wiping the BIOS password. Most likely however, the BIOS/UEFI will not have a password set, very few people ever set up passwords at this level.
Vectron in post #2 has provided a very good solution, BUT there might be better solutions if you are lucky, solutions which let you not only recover data but also recover the OS without having to wipe it and reinstall again. If raiden223 needs to use this method we'll need to give much more detaield instructions on live booting linux, but it shouldn't be considered until other methods have been tried. One problem is though that a lot of PCs thesedays will have encrypted harddrives, and in this case a live boot with a USB won't let you get at the data on the PC. Various other windows reset tools will still let you get at the data if you are lucky. britechguy is very much correct in saying w need details of your OS (operating system), hardware make and model, whether the computer has a local account and whether anyone is aware of any encryption on the harddrive.
Edited by rp88, 28 December 2017 - 11:44 AM.
Back on this site, for a while anyway, been so busy the last year.
My systems:2 laptops, intel i3 processors, windows 8.1 installed on the hard-drive and linux mint 17.3 MATE installed to USB