PerfLogs Folder (C:\PerfLogs)

Bottom Line: It is 100% safe to delete the C:\PerfLogs folder. Deleting it will not crash Windows, corrupt your personal files, or slow down your PC.

What is the PerfLogs Folder?

Located directly at C:\PerfLogs, this is a standard system directory created automatically by Windows. PerfLogs stands for Performance Logs.

Windows uses this folder to save log reports generated by the built-in Performance Monitor (perfmon.exe) and Reliability Monitor tools. When you run diagnostic tests, monitor CPU/RAM usage, or trace system performance counters, Windows writes report logs into this directory.

Can You Delete C:\PerfLogs?

✅ Yes, it is completely safe to delete.

• No system damage: PerfLogs contains no critical system code, user data, or application binaries.
• Auto-recreated: If you run Performance Monitor again in the future, Windows will simply recreate a new C:\PerfLogs folder automatically.
• Empty by default: On many PCs, this folder is completely empty. If it contains gigabytes of logs, it is usually due to third-party diagnostic software or long-running performance trace logs.

How to Delete C:\PerfLogs

Method 1: Delete via Windows File Explorer

1. Open File Explorer and go to C:\.
2. Right-click the PerfLogs folder.
3. Click Delete (or press Shift + Delete for permanent deletion).
4. If prompted for Administrator permissions, click Continue.

Method 2: Delete via Command Prompt (Admin)

1. Open Start, search for cmd, right-click Command Prompt, and select Run as administrator.
2. Run the command:

   rmdir /s /q C:\PerfLogs

Related Guides

• Learn about deleting CBS.log files.
• How to clean up dumpstack.log.
• Check if you can clear [Windows Temp files].