File & System Error Solutions
Find the fix for any file error.
Search an error code or message and get clear, step-by-step instructions that actually solve it.
File won’t open Solved
The file format or extension is invalid
Error code 0x80070057 · Windows
How to fix it
1Right-click the file → Open with and pick the correct program.
2Repair system files: run
sfc /scannow in Command Prompt.3Re-download or restore the file if it’s corrupted.
WIN0x80070002
MACError -36
NETDNS fail