Lost my wallet after instalation my notebook

Hi… Can anyone help me to solve this case? I have astar that actually staking to dapps, i got my astar as a reward from polkadot auction. But suddenly my notebook was error and need to be reinstall. So now, after installation, i forget to backup my wallet, so now i lost my wallet. Have anyone here can help me? Thank you for any small detail information that will be helpful

Do you have the .json file or seed phrases? If yes, just restore your wallet (=