Where Are Windows SFC and DISM Logs Stored?
SFC and DISM write their detailed logs to a CBS folder under Windows Logs, the first place to look when repairs act odd.
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When Windows repairs itself, the narration goes here. System File Checker and Deployment Image Servicing log every checked file, every replaced component, and every failure into the CBS directory.
The logs are verbose by design and punishing to read raw. Search for error markers and timestamps around the repair run rather than reading top to bottom. Support threads asking for CBS logs want exactly these files, so knowing the path shortens every servicing conversation.
Where Windows stores this, by platform
C:\Windows\Logs\CBS
CBS.log is the main component log, DISM.log covers imaging operations. Copy files elsewhere before opening: the live log locks during servicing.
Frequently asked questions
Which file covers SFC versus DISM?
SFC entries land in CBS.log while DISM keeps its own DISM.log in the same folder. Check the DISM log for servicing failures and CBS.log for component level detail on the same run.
Is CBS.log supposed to be gigabytes?
Yes, and routinely huge. Every servicing operation appends, so the log grows for the life of the install. Leave rotation to the servicing stack and read copies elsewhere when the file locks.
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