Cleanmgr.exe erreur d'application

"et impossible de le réinstaller puisque je n'arrive pas à trouver
un telechargement sur le web "<== normal, ce programme fait partie de windows

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Process File: cleanmgr or cleanmgr.exe
Process Name: Disk Space Cleanup Manager

Description:
cleanmgr.exe is a process belonging to the Disk Space Cleanup Manager which is a system tool bundled with Microsoft Windows. This program is non-essential process to the running of the system, but should not be terminated unless suspected to be causing problems.

Author: Microsoft
Part Of: Microsoft Windows Operating System

System Process: No
Background Process: No
Uses Network: No
Hardware Related: No
Common Errors: N/A
Memory Usage: N/A ( Free Up Memory )

Security Risk (0-5): 0
Spyware: No
Adware: No
Virus: No
Trojan: No

comment faire pour réparé cleanmgr.exe et faire le nettoyage sur le disque dur C Merci de m'aider!