Re,
Ci joint le contenu du backup de CCleaner.
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\SharedDlls]
"C:\\Program Files\\Common Files\\Symantec Shared\\PIF\\{B8E1DD85-8582-4c61-B58F-2F227FCA9A08}\\Languages\\0c\\01\\AlertEng.loc"=dword:00000001
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\SharedDlls]
"C:\\Program Files\\Common Files\\Symantec Shared\\PIF\\{B8E1DD85-8582-4c61-B58F-2F227FCA9A08}\\Languages\\fallback.dat"=dword:00000001
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\SharedDlls]
"C:\\Program Files\\Common Files\\Symantec Shared\\PIF\\{B8E1DD85-8582-4c61-B58F-2F227FCA9A08}\\pifCrawl.exe"=dword:00000001
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\SharedDlls]
"C:\\Program Files\\Common Files\\Symantec Shared\\PIF\\{B8E1DD85-8582-4c61-B58F-2F227FCA9A08}\\mhDSA.dll"=dword:00000001
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\SharedDlls]
"C:\\Program Files\\Common Files\\Symantec Shared\\PIF\\{B8E1DD85-8582-4c61-B58F-2F227FCA9A08}\\lun.ico"=dword:00000001
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\SharedDlls]
"C:\\Program Files\\Common Files\\Symantec Shared\\PIF\\{B8E1DD85-8582-4c61-B58F-2F227FCA9A08}\\SymHTML.dll"=dword:00000001
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.lwc]
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.lwc\OpenWithList]
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.rar]
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.rar\OpenWithList]
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\DDECache]
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\DDECache\Excel]
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\DDECache\Excel\system]
"ProcessName"="EXCEL.EXE"
"WindowName"="Microsoft Excel"
"WindowClassName"="XLMAIN"
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\DDECache\IExplore]
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\DDECache\IExplore\WWW_OpenURL]
"ProcessName"="iexplore.exe"
"WindowClassName"="DDEMLMom"
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\DDECache\IExplore\WWW_OpenURLNewWindow]
"ProcessName"="iexplore.exe"
"WindowClassName"="DDEMLMom"
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\DDECache\WinWord]
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\DDECache\WinWord\System]
"ProcessName"="WINWORD.EXE"
"WindowName"="Microsoft Word"
"WindowClassName"="OpusApp"
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\OpenWithList]
[HKEY_CLASSES_ROOT\acrobat\DefaultIcon]
[HKEY_CLASSES_ROOT\MailFileAtt]
[HKEY_CLASSES_ROOT\MailFileAtt\CLSID]
[HKEY_CLASSES_ROOT\mapifvbx.object]
[HKEY_CLASSES_ROOT\mapifvbx.object\Clsid]
[HKEY_CLASSES_ROOT\mapifvbx.object.1]
[HKEY_CLASSES_ROOT\mapifvbx.object.1\Clsid]
[HKEY_CLASSES_ROOT\pps_auto_file\shell\Read]
[HKEY_CLASSES_ROOT\pps_auto_file\shell\Read\command]
[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\HTML Help]
"NRTHelp.chm"="C:\\Program Files\\Common Files\\Symantec Shared\\NHelp\\"
[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Installer\Folders]
"c:\\Program Files\\Common Files\\Symantec Shared\\SymHTML\\1.0\\"=""
[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Installer\Folders]
"C:\\ProgramData\\Symantec\\SRTSP\\Quarantine\\"="1"
[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Installer\Folders]
"C:\\ProgramData\\Symantec\\PIF\\{B8E1DD85-8582-4c61-B58F-2F227FCA9A08}\\"="1"
[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Installer\Folders]
"C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\Programs\\LiveUpdate Notice\\"="1"
[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Installer\Folders]
"C:\\Program Files\\Common Files\\Symantec Shared\\PIF\\{B8E1DD85-8582-4c61-B58F-2F227FCA9A08}\\"=""
[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Installer\Folders]
"C:\\Program Files\\Common Files\\Symantec Shared\\PIF\\{B8E1DD85-8582-4c61-B58F-2F227FCA9A08}\\Languages\\0c\\01\\"=""
[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Installer\Folders]
"C:\\Program Files\\Common Files\\Symantec Shared\\PIF\\{B8E1DD85-8582-4c61-B58F-2F227FCA9A08}\\Languages\\0c\\"=""
[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Installer\Folders]
"C:\\Program Files\\Common Files\\Symantec Shared\\PIF\\{B8E1DD85-8582-4c61-B58F-2F227FCA9A08}\\Languages\\"=""
[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Installer\Folders]
"C:\\Program Files\\Adobe\\Security Update\\"="1"
Peut-être est-il plus simple de le restaurer en totalité?