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"Task Manager has been disabled by your administrator" error message
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Author: Yuval Sinay MVP
Community Solutions Content Disclaimer
Article ID : 555480
Last Review : October 17, 2005
Revision : 1.0
SUMMARY
The following knowledgebase will help you to resolve the error message "Task Manager has been disabled by your administrator" when you try to use "Task Manager"
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SYMPTOMS
When you try to open Windows Task Manger, the following error may appear: "Task Manager has been disabled by your administrator".
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CAUSE
There following
1. You use account that was blocked via the "Local Group Policy" or "Domain Group Policy".
2. Some registry settings block you from using "Task Manager".
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RESOLUTION
1. Verity that the "Local Group Policy" or "Domain Group Policy" doesn’t block you from using
"Task Manager".
1.1 "Local Group Policy"
a. Go to "Start" -> "Run" -> Write "Gpedit.msc" and press on "Enter" button.
b. Navigate to "User Configuration" -> "Administrative Templates" -> "System" -> "Ctrl+Alt+Del Options"
c. In the right side of the screen verity that "Remove Task Manager"" option set to "Disable" or "Not Configured".
d. Close "Gpedit.msc" MMC.
e. Go to "Start" -> "Run" -> Write "gpupdate /force" and press on "Enter" button.
Note: If you are using Windows 2000, please follow KB q227302 instead stage "e".
Using SECEDIT to Force a Group Policy Refresh Immediately
http://support.microsoft.com/kb/q227302/
1.2 "Domain Group Policy"
a. Contact you local IT support team.
2. Verity correct registry settings::
a. Go to "Start" -> "Run" -> Write "regedit" and press on "Enter" button.
Warning: Modifying your registry can cause serious problems that may require you to reinstall your operating system.
Always backup your files before doing this registry hack.
b. Navigate to the following registry keys and verity that following settings set to default:
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System]
"DisableTaskMgr"=dword:00000000
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Group Policy Objects\LocalUser\Software\Microsoft\Windows\CurrentVersion\Policies\System]
"DisableTaskMgr"=dword:00000000
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\system\]
"DisableTaskMgr"=dword:00000000
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]
"DisableCAD"=dword:00000000
c. Reboot the computer.
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MORE INFORMATION
http://www.microsoft.com/security
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APPLIES TO
• Microsoft Windows XP Professional
• Microsoft Windows XP Home Edition
• Microsoft Windows XP Tablet PC Edition
• Microsoft Windows 2000 Enterprise Edition
• Microsoft Windows 2000 Professional Edition
• Microsoft Windows 2000 Standard Edition
• Microsoft Small Business Server 2000 Standard Edition
• Microsoft Windows Small Business Server 2003 Standard Edition
• Microsoft Windows Small Business Server 2003 Premium Edition
• Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems
• Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)
• Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
• Microsoft Windows Server 2003, Web Edition
• Microsoft Windows Server 2003, Standard Edition (32-bit x86)
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Keywords: kbpubtypecca kbpubmvp kbhowto KB555480
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COMMUNITY SOLUTIONS CONTENT DISCLAIMER
MICROSOFT CORPORATION AND/OR ITS RESPECTIVE SUPPLIERS MAKE NO REPRESENTATIONS ABOUT THE SUITABILITY, RELIABILITY, OR ACCURACY OF THE INFORMATION AND RELATED GRAPHICS CONTAINED HEREIN. ALL SUCH INFORMATION AND RELATED GRAPHICS ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT AND/OR ITS RESPECTIVE SUPPLIERS HEREBY DISCLAIM ALL WARRANTIES AND CONDITIONS WITH REGARD TO THIS INFORMATION AND RELATED GRAPHICS, INCLUDING ALL IMPLIED WARRANTIES AND CONDITIONS OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, WORKMANLIKE EFFORT, TITLE AND NON-INFRINGEMENT. YOU SPECIFICALLY AGREE THAT IN NO EVENT SHALL MICROSOFT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY DIRECT, INDIRECT, PUNITIVE, INCIDENTAL, SPECIAL, CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF USE, DATA OR PROFITS, ARISING OUT OF OR IN ANY WAY CONNECTED WITH THE USE OF OR INABILITY TO USE THE INFORMATION AND RELATED GRAPHICS CONTAINED HEREIN, WHETHER BASED ON CONTRACT, TORT, NEGLIGENCE, STRICT LIABILITY OR OTHERWISE, EVEN IF MICROSOFT OR ANY OF ITS SUPPLIERS HAS BEEN ADVISED OF THE POSSIBILITY OF DAMAGES.
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Σχετικά κέντρα υποστήριξης
Windows XP Professional
Windows XP
Windows XP Home Edition
Windows 2000
Windows Small Business Server 2003
Windows Server 2003
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©2008 Microsoft Corporation. Με επιφύλαξη κάθε νόμιμου δικαιώματος. Όροι χρήσης Εμπορικά σήματα Δήλωση προστασίας ιδιωτικού απορρήτου
http://support.microsoft.com/kb/555480
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REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 0 /f
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Download YouTube Videos as MP4 Files
Sunday, April 13, 2008
Download YouTube Videos as MP4 Files
An interesting side-effect of YouTube's recent push for higher quality videos is that most videos can be downloaded as MP4 files directly from YouTube. Until now, you could only get FLV files from your browser's cache or using one of the many websites that let you download YouTube videos. In fact, to download the MP4 files, you need to use the same URL like for FLV files and append "&fmt=18":
http://www.youtube.com/get_video?video_id=ID&t=SIGNATURE&fmt=18
ID is the video's identification value, SIGNATURE is a value that prevents you from downloading the file just by knowing the ID. You could create this URL by looking at the source code of a YouTube page, but it's much easier to automatically generate it.
One way is to save the following link as a bookmarklet by dragging it to your Links bar (in Firefox, Safari) or right-clicking and adding it to your favorites (in Internet Explorer, Opera):
Get YouTube video
If you didn't manage to add the bookmarklet, this post has more detailed instructions.
When you want to download a YouTube video, click on the bookmarklet and you should see a new option below the embeddable code.
Because YouTube doesn't send the right MIME type, you shouldn't click on the download link. Right-click and select "save link as" or "save target as" and enter a proper name for the video. Make sure to use the .mp4 extension when you enter the filename.
Having to click on the bookmarklet is annoying, so this Greasemonkey script is a better alternative because it adds the download link automatically. It requires the Greasemonkey extension for Firefox or a similar plug-in for userscripts. Opera has built-in support for userscripts, so you only need to go to Tools > Preferences > Advanced > Content > JavaScript options, select the directory where you will put your script and copy the script to that directory.
YouTube's MP4 files have a higher resolution, stereo sound and can be played with applications like VLC, MPlayer, iTunes, QuickTime. Not all YouTube videos can be downloaded as MP4 files and the fallback format is FLV.
Note that YouTube's terms of use require you "not to access User Submissions or YouTube Content through any technology or means other than the video playback pages of the Website itself, the YouTube Embeddable Player, or other explicitly authorized means YouTube may designate," so these scripts could break YouTube's policies. The scripts only download files that are used by YouTube's player, so you may also find the videos in your browser's cache.
Labels: Greasemonkey, YouTube
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