Clear All Event Logs in Event Viewer in Windows  

I made a .ps1 file using wevtutil el | Foreach-Object {wevtutil cl "$_"} to run with Power Shell from right-click menu but, it is not working. Any help?

Hi, Brink

I used option one of this tutorial, but I found the command codes as following might useless.

FOR /F "tokens=1,2*" %%V IN ('bcdedit') DO SET adminTest=%%V
IF (%adminTest%)==(Access) goto noAdmin


I ran the bat without administrator privileges, but the bat didn't go to :noAdmin and show the words as following.
echo Current user permissions to execute this .BAT file are inadequate.
echo This .BAT file must be run with administrative privileges.
echo Exit now, right click on this .BAT file, and select "Run as administrator".

Q1. Could you please tell me how to modify this two command codes or delete them?

Q2. Could you please tell me (Access) should change to which word and then the bat would go to :noAdmin?

Best regards,
Steven.

Brink said:

Hello Steven,

Did you run the BAT in an elevated account like the built-in Administrator or disabled UAC?

I tested the same by running the BAT without "Run as administrator", and got the message below as normal from those command lines.

Thanks for your test, Brink.

I have only one account in this PC and current account is administrator.

By the way, I disabled UAC by using the registry keys as following.

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System]
"ConsentPromptBehaviorAdmin"=dword:00000000
"EnableLUA"=dword:00000000
"PromptOnSecureDesktop"=dword:00000000

Best regards,
Steven.

Brink said:

Ah ok. I'm betting disabling UAC is why the command lines don't work.

It might be this cause.

But, I tested the BAT by default UAC setting, the result is the same.
The BAT didn't go to :noAdmin and show the words as following.
echo Current user permissions to execute this .BAT file are inadequate.
echo This .BAT file must be run with administrative privileges.
echo Exit now, right click on this .BAT file, and select "Run as administrator".

Brink said:

I'm not sure what else it could be since I can't reproduce what you're seeing.

Hi, Brink.
The first picture is my current account UAC setting.

The Second picture is the result of running the BAT.


What happened to my Windows 10 x64 20H2?
Note:
The current OS is new install and not since 2004 upgrade to 20H2.

Thanks for your kindly help.

Brink said:

It looks like the command has successfully ran to clear your event logs.

Before：

After :


By the way, 存取被拒 means Access denied in English.
Please you help me again. Thanks a lot.