Question: Two days ago I had a full C: drive, after which I deleted 8 GB of data. The next day the hard drive was full again, so I continued with deleting another 5 GB, and once again the next day the disk was full.
After some searching for what caused the disk space to be filled so quickly, I used the windirstat tool to find which files took up the most space. I found out that the CBS.log file, which is located in c:windowslogscbs, is 20 GB large.
I am using Windows 8.
- Should this file be this large, and if not, how can I reduce the size?
- What is the purpose of this file?
- Can I delete it?
Answer: That is a file that is generated by the Microsoft Windows Resource Checker (SFC.exe). ?
No, it should not be that large. ?The CBS.persist.log should be generated when the CBS gets to be around 50 meg in size. CBS.log should be copied to cbs.persist.log and a new cbs.log file should be started.
You can try compressing the file:
- If you right click on the CBS.log file
- Then click on Properties
- On the General tab, click Advanced
- Check “Compress contents to save disk space” and click on OK
Or, if you are sure your system is running fine, you can delete this file. SFC.exe will create a new one, next time it is run. ?But, it could be useful for troubleshooting issues.