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Windows zero-day vulnerability ADV200006: How to disable preview pane and details pane in Explorer

nabbisen profile image Heddi Nabbisen ・2 min read

Windows Zero-Day Remote Code Execution Vulnerability

"ADV200006 | Type 1 Font Parsing Remote Code Execution Vulnerability", a zero-day vulnerability in the Windows 7, was reported on 2020-03-23, which is said to be less effective in Windows 10.

How To Mitigate It

As one of the workarounds, Microsoft suggests to:

Disable the Preview Pane and Details Pane in Windows Explorer

Keyboard Shortcuts

Ones of the easiest ways are to use the shortcuts in Explorer with your keyboard:

  1. Alt + "P" toggles "Preview Pane".
  2. Alt + Shift + "P" toggles "Details Pane".

Command Lines

By the way, here are the ways to use command lines to edit registries.
They are suitable for automation and bulk batch execution.

Caution: Editing registries in wrong ways can break your computer.

First, run command prompt as an administrator.
For example, press Windows + "R" to open the "Run" box, type "cmd" into it and then press Ctrl + Shift + Enter. You'll get the prompt after permission's asked.

#1. Disable Preview Pane

Add NoReadingPane value as DWORD and set 1 as its data in it as below:

reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoReadingPane /t REG_DWORD /d 1 /f

Note: "HKCU" means "HKEY_CURRENT_USER". /f is an option to overwrite the value without confirmation.

Once you sign out and sign in again, the Preview Pane in your Explorer will be disabled.


  • How to restore it

    reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoReadingPane /d 0 /f
    

#2. Disable Details Pane

Edit IconsOnly value's data as below:

reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced /v IconsOnly /d 1 /f

Once you sign out and sign in again, the Details Pane in your Explorer will show just icons instead of rendered content like thumbnails.


  • How to restore it

    reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced /v IconsOnly /d 0 /f
    

Here, the two panes are disabled.
The Explorer looks like this.

disabled preview and details

Posted on by:

nabbisen profile

Heddi Nabbisen

@nabbisen

An ICT designer/developer and a security monk. "With a cool brain and a warm heart", I am challenging unsolved problems in our society. I use OpenBSD/Rust/etc.

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