Help Center
How do I know what I can safely remove?
Every large file on your PC has a story. Some are harmless caches, others are essential system data. Learning to read that story is the key to safe cleanup.
問題 · THE PROBLEM
Uncertainty about what to delete
Every folder looks important. System32 has files with names that mean nothing to you. AppData contains folders for apps you barely remember installing. Without understanding what each file does, every deletion feels like a gamble.
Unclear file purposes Fear of breaking Windows Too many candidates
原因 · COMMON CAUSES
- No guidance for individual files
- Accumulated unknown data
- Multiple conflicting cleanup advice
- Fear of system damage
- Lack of file provenance
ソリューション · HOW TO FIX IT
Decide with confidence
Identify
See every large file and understand what it is.
01
Understand
Learn the purpose of each file before taking action.
02
Get Guidance
ClearKun flags protected files so you never make a dangerous choice.
03
Remove Confidently
Delete only items that are proven safe to remove.
04
警告 · WHAT NOT TO DELETE
Never delete these without guidance
System32 folder
WinSxS folder contents
Pagefile.sys
Hiberfil.sys
Windows folder root
Program Files root
よくある質問 · FAQ
Frequently asked questions
Check the file location, its purpose, and whether it is created by a system process or an application. ClearKun labels each file with safety information.
Yes, for applications you no longer use. The AppData folder stores settings and caches — old app data can be safely removed if the app is no longer installed.
No. Editing the registry to delete keys is extremely risky and can break applications or prevent Windows from starting. Never modify the registry to free space.
Windows upgrade logs can be large but are generally safe to remove after confirming the upgrade completed successfully. Use Disk Cleanup for safe removal.
Start with known safe targets like Temp folders, browser caches, and Recycle Bin. For system-level cleanup, use Disk Cleanup or ClearKun.
Use a tool that explains each file or folder before you delete it. ClearKun provides plain-language descriptions so you can decide with confidence.
早期アクセスに参加する
Let ClearKun prioritize your cleanup
Stop guessing what is safe to delete. ClearKun scans your PC and explains every large file in plain language.