Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: Cannot access Secure Desktop registry key

15 Feb 2015   #1

Windows 7 x64
Cannot access Secure Desktop registry key

Somehow Secure Desktop - the dimming of the screen in conjunction with a UAC prompt - was turned off on my laptop. I learned that it can be toggled in the registry at:


However when I try to access that key I get:

"System cannot be opened. An error is preventing this key from being opened. Details: The system cannot find the file specified"

I discovered that I get the same error attempting to access this key on a different Windows 7 computer. I wonder if my security software is locking it? Any ideas will be appreciated.

My System SpecsSystem Spec
15 Feb 2015   #2

Windows 7 Pro 32

Wrong path. Try this:

My System SpecsSystem Spec
15 Feb 2015   #3

Windows 7 x64

Quote   Quote: Originally Posted by Tookeri View Post
Wrong path. Try this:

Thanks, that was the problem!

I had to add the 32 bit dword PromptOnSecureDesktop and set the value to "1". That enabled the switch to Secure Desktop (indicated by screen dimming) with UAC prompt.
My System SpecsSystem Spec

15 Feb 2015   #4

Windows 7 Pro 32

Additional info for anyone reading this thread as changing settings in the registry manually should only be done by experienced users:

User Account Control (UAC) - Change Prompt Behavior for Standard Users

From this Tutorial you can then find other Related Tutorials as a list at the end of the Tutorial. These Tutorials include .reg files you can use to set the values for different UAC settings.

For Windows 7 Professional/Ultimate/Enterprise they also show how you can use the Local Security Policy editor or the Local Group Policy Editor to modify UAC settings.
My System SpecsSystem Spec

 Cannot access Secure Desktop registry key

Thread Tools

Similar help and support threads
Thread Forum
How secure is Remote Desktop over the Internet?
Hi all, I am connected to the Internet through a router and I just learned how to properly configure Remote Desktop and port forwarding so that I can access my computer from outside over IP. However, and since I have a small home network, this causes me some doubts in what concerns both the...
Network & Sharing
Secure and Lock down Computer against Unauthorised Access
There are a number of steps that you can take to make your computer secure against unauthorised access, but remember that no method is 100% effective. The idea is to make it as difficult as possible. With that in mind, here are some steps that you can take to maximise your computer's security. ...
Registry: can't control Desktop Background Slideshow in registry?
Just a rough test: 1. No slideshow on desktop; 2. Backup the registry file; 3. Turn on the slideshow (Desktop - Personalize - Desktop Background - Select All - Save Changes); 4. Run the backup registry file; The desktop starts with the original picture (the desktop wallpaper picture...
Disable IE's Access To The Registry
Is it possible to switch on an option to limit or prevent IE from accessing the registry to read information. Or are there applications out there that can interfere with IE's ability to read the registry? Thanks in advance
Browsers & Mail
Registry access
i am running as an administrator, but every time i try to register cusom Dlls I get an error message saying that I don't have rights to the registry. Is there a setting somewhere that I need to change?
Installation & Setup
Registry Access Denied......
I'm not sure exactly where I would post this thread so if this needs to be moved, please feel free to do so. Heres my deal: I use VNC for work (allows me to remote into clients computers) and when I installed this application on my laptop, I am getting a --RegCreateKeyEx: Access is denied....

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 12:55.
Twitter Facebook Google+ Seven Forums iOS App Seven Forums Android App