Windows & Office Error Code Lookup
Search by error code (like 0x80070005), stop code name (like IRQL_NOT_LESS_OR_EQUAL), Excel formula error (like #REF!), or plain description.
Don't have an exact code yet? See common Windows error messages explained in plain English first.
6 results
CMD-NOT-RECOGNIZED — "is not recognized as an internal or external command"
Command Prompt can't find the program or command you typed, usually because of a typo, a missing space, or the program not being in a location Windows searches by default (its PATH).
CMD-ACCESS-DENIED — "Access is denied" in Command Prompt
The command you ran needs administrator privileges that the current Command Prompt window doesn't have.
DISM-SOURCE-FILES-NOT-FOUND — DISM Error: The Source Files Could Not Be Found
DISM couldn't reach Windows Update to download the repair files it needs, or a local source wasn't specified.
CMD-PATH-NOT-FOUND — "The System Cannot Find the Path Specified"
The folder path in your command doesn't exist, or was typed incorrectly.
CMD-FILE-IN-USE — "The Process Cannot Access the File Because It Is Being Used by Another Process"
Another program currently has the file open or locked, preventing the command from modifying or deleting it.
WINDOWS-RESOURCE-PROTECTION-ERROR — "Windows Resource Protection Could Not Perform the Requested Operation"
sfc /scannow itself failed to run properly — this isn't a report about your system files, it's SFC saying it couldn't complete the scan at all. Windows Resource Protection (WRP) is the underlying feature that maintains the cache of known-good files SFC compares against; when SFC can't reach or use that cache, this is the message you get.