He ran back to the computer. He had to fix this. He had to re-install the update. If he could get the update back, he could fast-forward to the present. He wouldn't lose his wife, his job, his life.
If you recently upgraded your version of Windows and aren't happy with it, you typically have to roll back without losing your files. windows roll back update
Alternatively:
He realized then the horror of the "Roll Back." It wasn't an uninstall. It was a trap. The system deemed the future— his future —too unstable, too corrupted by complexity, and it had elected to restore the factory settings. He ran back to the computer