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General Computer Support / Strange behaviour in Windows 7

« on: September 01, 2013, 06:34:43 am »

Hello
I have, for a few weeks now) some problems with my Windows 7 - 64 Bits
I solved some, but one important poblem remains :
I need to create new User Accounts, because some programs I need to use, don"t install because my current user name contains "foreign" character (I'm french and the company who built my computer gave the name "Propriétarie") and the "é" seems to be a troublemaker
So, when I go to >>Control panel >> User accounts, I can access :
- Create a password for your account
- Change my image
- Change the parameters (UAC)

But I CAN NOT
- Change my account name
- Change my account type
- Manage another account

I can click on these lines, but nothing happens

I can create user through the command       net user  Username /add
or  net administrators username /add
and they appear as selectable at boot time
I can also delete them through command line

I tried to use a utility called "ReProfiler" : it does not start on this system, when it runs perfectly on other systems

I ran  Chkdsk /F : no problem
I ran   Microsoft Malicious Program : no problem
I ran sfc /scannow : it seems to stop after 12% and indicates some problems

So, it seems that some parts of Windows 7 are corrupted

Any help will be welcome  _    Have a good day