Windows 10: taskmgr, regedit and other functions not running: error: the parameter

Hello everyone!
Two days ago I noticed something very strange with my computer: I tried to open Task Manager (right click on the task bar) and I got an error: The parameter is incorrect. I get the same error when trying to open it from C:\Windows\System32.
Someone suggested that I should modify the registry, so I tried to open regedit, but got the same error.
When I tried to run sfc/scannow (Windows+R), it showed me a black window for about a tenth of a second and nothing else happened.
I read some posts on the internet and found out that I could fix my problem by running a DISM command. but the DISM.exe would not open either *Sad.
When I click on the Start button (or press Windows key) nothing happens.
I tried fixing it using a Windows 10 USB drive, managed to run the sfc scan from it, but detected no problems.
None of these .exe files work in safe mode either.
Sometimes Chrome cannot access any other website but google (I can do searches, but no other site is accessible). There are some programs that run without problem, but some other would not.
Is there any way I can fix this, without reinstalling Win10?
Thanks.

:)

 

GPU-Z what command line parameter ?

Current /? (-?) or / help (-help) parameter is invalid

 

This Parameter is incorrect 0x80070057 win 10 recovery cd-rom

Hi,

The error "This Parameter is incorrect" usually happens because of a system or disk errors. To isolate this issue, we suggest running CHKDSK using the command prompt. Running CHKDSK
can check the integrity of a hard disk and can repair various file system errors. To run CHKDSK follow these steps:

• Plug in external hard drive, USB drive or memory card to the computer.
• Press Windows Key + X and then select Command Prompt (Admin).
• In the Command Prompt window, type chkdsk E: /f /r. You should replace E with the drive letter of your external hard drive or external device.
• Restart your PC once the process is done.

If further assistance is needed, we are here to help.

 

Windows 10,Run DLL error pop up

Hello - I am also have DLL issues with Windows 10. I get a rundll error when I try to go to settings.

The error says error running VVCE8/.../MSHTML - the parameter is incorrect.

I tried both suggestions listed above with no success. Any help appreciated....

George