my name is capitayn catte: Did you have cloud saves enabled on your own account before logging in as your friend? If you didn't, you're definitely out of luck.
HybridChief: yes it was enabled but i dont know why my save files disappeared
pds41: You could see if there are old saves in:
%AppData%\..\LocalLow\Team Cherry\Hollow Knight
Otherwise, not that I know of.
HybridChief: I went in appdata but i cant see a file called locallow does this only include steam hollow knight?
pds41: You could see if there are old saves in:
%AppData%\..\LocalLow\Team Cherry\Hollow Knight
Otherwise, not that I know of.
HybridChief: oh wait i do see some files in it. Are these my old save files?
There should be a fair few things in LocalLow. I've got some Adobe, Google, Microsoft, Unity and Temp stuff in there on this machine.
Try pasting %AppData%\..\LocalLow\Team Cherry\Hollow Knight into a run window rather than manually browsing to the folder.
Just saw your edit. The save files should be in there. They're saved in .dat format
This Steam topic might help, but I don't have the game so I can't really help you in identifying which files might be helpful. You might want to see if any are dated from when you know it was you playing in your own user account.
https://steamcommunity.com/app/367520/discussions/0/1798529872647670778/