Guides

How to read a code

Before you search, copy the code exactly. A missing zero, a letter O in place of a zero, or a shortened name will send you to the wrong card, or to a page written for a different program.

If the code is a three-digit number in the 400s or 500s, you are probably looking at an HTTP status from a website. This bench has cards for the common ones. If the text starts with ERR_ or DNS_PROBE_, it is a browser badge. If it starts with 0x, it is often a Windows (or other program) hexadecimal code; many programs reuse similar-looking numbers for different things, so record the program name as well.

Write down, next to the code: the program that showed it, the exact address or file you were opening, and the time. Those three facts are worth more than a screenshot of a generic badge. Then look the code up. If this site has no card for it, do not assume a random page that repeats the same number is talking about your case.

Avoid any advice that begins by disabling every safety feature, deleting a system folder, or pasting a long command you cannot read. A good first step is small and reversible.