Though it isn't easy, Elden Ring does allow you to redo your stat upgrades.
Leveling up your character by upgrading stats is crucial in Elden Ring, as you'll need to raise your HP, stamina, damage, and other attributes to succeed against the game's difficult enemies and bosses. However, it's not uncommon for many players to either make a mistake while upgrading their stats or decide that they want to go for a different build entirely midway through their playthrough. When this happens, being able to reallocate all of the stat points you've earned and used by leveling is incredibly helpful.
Full story from the WindowsCentral blog...