Bonsoir Hyunkel30 et merci pour votre aide.
Voici ce que j'ai dans la fenêtre du pré-scan
┌────────────────────────────────────────────────────────────────────────────────┐
│ Tweaking.com - Windows Repair v3.6.4 - Pre-Scan
│ Computer: CHRISTIAN-PC (Windows 7 Ultimate 6.1.7601 Service Pack 1) (32-bit)
│ [Started Scan - 20/11/2015 01:42:54]
└────────────────────────────────────────────────────────────────────────────────┘
┌────────────────────────────────────────────────────────────────────────────────┐
│ Scanning Windows Packages Files.
│ Started at (20/11/2015 01:42:54)
│
│ These Files Are Missing: (Total: 1)
C:\Windows\servicing\Packages\Package_for_KB2900986~31bf3856ad364e35~x86~~6.1.1.1.cat
│
1 Combined Problems were found with the packages files, these files need to be replaced (These mainly only effect installing Windows Updates.)
│ The SFC (System File Checker) doesn't scan and replace some of these files, so you may need to replace them manually.
│
│ THESE FILES DO NOT KEEP THE REPAIRS FROM WORKING; YOU MAY STILL RUN THE REPAIRS IN THE PROGRAM.
│
│ If you need help in replacing these files, post on the Forums at Tweaking.com for help.
│
│ Files Checked & Verified: 4 922
│
│ Done Scanning Windows Packages Files.(20/11/2015 01:46:19)
└────────────────────────────────────────────────────────────────────────────────┘
┌────────────────────────────────────────────────────────────────────────────────┐
│ Scanning Reparse Points.
│ Started at (20/11/2015 01:46:19)
│
│ Reparse Points are OK!.
│
│ Files & Folders Searched: 172 406
│ Reparse Points Found: 129
│
│ Done Scanning Reparse Points.(20/11/2015 01:47:50)
└────────────────────────────────────────────────────────────────────────────────┘
┌────────────────────────────────────────────────────────────────────────────────┐
│ Checking Environment Variables.
│ Started at (20/11/2015 01:47:50)
│
│ No problems were found with the Environment Variables.
│
│ Done Checking Environment Variables. (20/11/2015 01:47:51)
└────────────────────────────────────────────────────────────────────────────────┘
┌────────────────────────────────────────────────────────────────────────────────┐
│ [Finished Scan - 20/11/2015 01:47:51]
│
│
- Scan Complete - Problems Found!
│
│
- You can use the Repair Reparse Points or Repair Environment Variables tools at the bottom of this Window if needed.
│
│
- While problems have been found, you can still run the repairs in the program.
│
- But for the best results it is recommended to fix the problems reported in this scan if possible.
│
- If you need help fixing any of the items in the log, just post in the forums at Tweaking.com for help.
└────────────────────────────────────────────────────────────────────────────────┘