Windows 10: Registry strange behavior in HKEY_CURRENT_USER\Software\Microsoft\...

I tried to clear all contents of
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts
then set security permission to logger user name () to be clear from:

• create key
• set value

and let it inherently apply to all keys under it

But it responds with icons flickering / blinking very often
so I undo the security setting.. but while keeping on registry browsing under this key I came across:

• The jpg filetype key and userchoice key were created
• On userchoice key the logging user () ACL was created, and
• It's set to DENY on SET VALUE !

Is it windows 10 behavior or an intruder's been screwing up ?
Please help me.. many thanks in advance

:)

 

Strange behavior

The discussion about mobile phones and radiation is already a few years ongoing.



But that doesn't explain the behavior of my mobile phone.



The random "micro wave" radiation which causes a lot of heat on the skin and drains the batteries in a few minutes is likely to be caused by a program.



A program which seems to activate some frequenties which are not activated in normal use.

 

Strange behavior

Have a look at the link below.



Mobile phone radiation and health - Wikipedia

 

Why? that's your file associations and registered file types.

I suggest if you have a system restore point you use that to reverse whatever you've done.

 

I agree with @dalchina!


Since Windows 7, Microsoft has added a new registry subkey, named “UserChoice”, to certain file extensions under HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\FileExts, and the contents of the UserChoice subkey dictate the default application for opening the file type. The contents of the UserChoice subkey are protected from modification by a Deny permission applied to the current user’s account.


If you don't have system restore point to restore changes you have done then follow instructions below to replace registry hives with backup versions.


Windows Vista/ 7/8/8.1/10 keep a regular backup of the registry handy in case you need to overwrite a corrupted registry. By default, the RegIdleBackup task runs every 10 days, so that’s as far back as you would lose if you replaced the current registry with the automatically backed-up files. You can find the backed-up registry files in \Windows\System32\config\RegBack folder.


Please boot your computer with Windows Setup Media and from Windows Recovery Environment start the Command Prompt.

Please type below command into Command Prompt and press Enter key.

Code: Dir C:\Windows\System32\config\RegBack[/quote]
Above command will list files stored within RegBack folder and there file size, make sure files are not zero size if they are do not follow below instructions.





Please replace partition letter C: with Windows installed partition letter. When computer boots into Windows Recovery Environment (WinRE) environment the drive letter assign to Windows partition may not be C: drive letter because Windows 7, 8 , 8.1 and 10 creates a separate system partition when it's installed from scratch. The system partition contains boot files WinRE assigns the system partition the C: drive letter and the Windows installed partition will be assign any other drive letter usually D: drive letter is assign to Windows installed partition. The Bcdedit /enum | find "osdevice" command can be use to find out the drive letter of the Windows installed partition the output of the Bcdedit command is similar to this osdevice partition=D:. The drive letter after partition= is the drive letter of the Windows partition.

Please type below commands into Command Prompt and for each command you have typed press Enter key.



Code: Ren C:\windows\system32\config\SAM SAM.BAK Ren C:\windows\system32\config\SYSTEM SYSTEM.BAK Ren C:\windows\system32\config\SECURITY SECURITY.BAK Ren C:\windows\system32\config\DEFAULT DEFAULT.BAK Ren C:\windows\system32\config\SOFTWARE SOFTWARE.BAK Copy C:\Windows\System32\config\RegBack\SAM C:\windows\system32\config Copy C:\Windows\System32\config\RegBack\SYSTEM C:\windows\system32\config Copy C:\Windows\System32\config\RegBack\SECURITY C:\windows\system32\config Copy C:\Windows\System32\config\RegBack\DEFAULT C:\windows\system32\config Copy C:\Windows\System32\config\RegBack\SOFTWARE C:\windows\system32\config[/quote]
This procedure assumes that Windows Vista/7/8/8.1/10 is installed to the C:\ partition. Make sure to replace C:\ drive letter to the appropriate Windows OS installed partition drive letter if it is a different location.


Above commands renames the registry files at their existing location, and then copies the registry files from the RegBack folder to the C:\Windows\System32\Config folder.