New
#11
Things do get written to the hard drive in a normal boot: log files, the swap file, the event log, the user profile, etc.
There is a chance that some sectors of the files you wish to recover may get overwritten. How big a risk, I cannot say - probably small. But I can say that there is no risk if you boot from something else.
That's why I'd recommend booting from something like a recovery drive usb that you can make on another PC. The files from the portable Recuva .zip file can be copied to a folder on the boot usb and started from the command prompt.
How come using Kyhi is needed?
It's not necessary, but it would make life easier. A recovery drive usb + recuva will do the job, but KyHi's disk has a convenient Windows GUI with Recuva (and other tools) on the Desktop.