you cant :(
maybe try exporting winrar pack again - there is another ending if you leave your game for too long but he still dies :(
lol i know how, just delete time
1 delete the folder you decompressed with ALL it had in
2 press win + R and write "regedit.exe" to open register editor
3 go to Computer at "Computer\HKEY_CURRENT_USER\SOFTWARE\FunTech\Your FREE BitBuddy™" and delete file "Dead_h2088734529"
4 re-compress the folder and start the game to restart your game