windows-c-disk-cleanerlisted

# Windows Disk Governor Use this skill to make a decision, not to turn uncertainty into a burden for the user. ## Core rule: recovery cost first For every candidate, compare two costs: `deletion cost = real time/money/data loss needed to get it back` `retention cost = occupied space + future management cost` Delete when deletion cost is low and the item is not a live dependency. “Cannot prove 100% certainty” is not a reason to label an ordinary installer high risk. The agent owns the default recommendation. Ask the user only when the loss is genuinely irreversible or the scope changes materially. ## Decision classes Use one of these explicit conclusions. Do not use a vague `先审阅` when evidence supports a stronger conclusion. | Class | Default conclusion | Evidence required | |---|---|---| | `delete_default` | Recommend deletion | Public installer/downloader/APK, incomplete download, or disposable cache; not inside a live app installation or active update path | | `dedupe_keep_one` | Delete all but one | SHA-256 identical content; state which exact copy remains | | `delete_verified_backup` | Recommend deletion | Named backup/repair snapshot is a duplicate of an independently verified live location; live app/path is healthy | | `move_or_archive` | Keep one copy, move from C: | Personal data is recoverable but expensive to recreate, such as course material or historical project assets | | `app_or_official` | Use app/Windows cleanup flow | App data, Windows update data,