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Outlook 2010–This operation has been cancelled due to restrictions in effect on this computer

A few weeks ago, I started getting this annoying error when trying to click on links in Outlook 2010 messages.  I have no idea how I caused it, but apparently it happens a lot.

There are a number of different things to check and try (like resetting your default browser, etc.).

What worked for me:

1.Start, click Run, type Regedit in the Open box, and then click OK.
2.Browse to HKEY_CURRENT_USER\Software\Classes\.html
3.Right click the value for the .html key and select Modify…
4.Change the value from whatever it is to “htmlfile”

Do this for the htm, xhtml, and shtml keys if they exist.

If the value is “htmlfile”, google for the other possible fixes.

posted on Saturday, November 20, 2010 1:49 PM Print
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# re: Outlook 2010–This operation has been cancelled due to restrictions in effect on this computer
marin
12/7/2010 6:09 AM
Thx a lot
thats save my life ;)
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# re: Outlook 2010–This operation has been cancelled due to restrictions in effect on this computer
Colonel
12/12/2010 8:36 AM
THANK YOU FOR THIS FIX! WORKED PERFECT!!

Had same problem (Office 2010, Windows 7 64-bit) – couldn’t click Outlook email links and Word2010 links…

Chgd via Regedit 5 times: “ChromeHTML” => “htmlfile”
These Keys: .html .htm, .xhtml, .shtml
...and also .xht, which I noticed was also set to “ChromeHTML”.

Quick Google of “ChromeHTML” – looks like some sort of Google add-on ($#$##$%^$%^)
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# re: Outlook 2010–This operation has been cancelled due to restrictions in effect on this computer
Swimmer
12/27/2010 5:14 PM
THANKYOU THANKYOU. COULD NOT GET TO THE BOTTOM OF IT.
MY FRUSTRATION HAS BEEN RELEASED. SUCH AN EASY FIX.
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# re: Outlook 2010–This operation has been cancelled due to restrictions in effect on this computer
WingNut
1/4/2011 9:51 PM
Thank you, thank you, thank you! Worked perfectly!
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# re: Outlook 2010–This operation has been cancelled due to restrictions in effect on this computer
tornado4u2
5/27/2011 4:47 PM
thanks a lot M8, this is the most simple yet effective solution to outlook annoying problem I have found. much obliged.
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# re: Outlook 2010–This operation has been cancelled due to restrictions in effect on this computer
Cheryl
1/13/2012 9:49 AM
Thank you! It worked great!
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# re: Outlook 2010–This operation has been cancelled due to restrictions in effect on this computer
Michael
1/23/2012 9:56 AM
Works perfect on windows 7 64bit (using Office professional plus 2010)

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# re: Outlook 2010–This operation has been cancelled due to restrictions in effect on this computer
Dan
1/25/2012 9:23 AM
Worked like a charm. Thanks
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# re: Outlook 2010–This operation has been cancelled due to restrictions in effect on this computer
Lamech
5/7/2012 7:44 AM
It worked fine in the same environment..and had to change .htm as well.
thanks
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# re: Outlook 2010–This operation has been cancelled due to restrictions in effect on this computer
Nikola
7/1/2012 8:40 AM
Thanks,it worked great
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# re: Outlook 2010–This operation has been cancelled due to restrictions in effect on this computer
Daniel
7/26/2012 9:24 PM
u guys are awesome i follow the steps above and fix this pain in the neck problems i looked all over the internet thank you.
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# re: Outlook 2010–This operation has been cancelled due to restrictions in effect on this computer
Blackbeltd2
8/29/2012 6:23 PM
Thanks for the post. I too fell for the chrome issue. Your post worked for me. Windows 7 and Outllook 2010. Thanks again!
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# re: Outlook 2010–This operation has been cancelled due to restrictions in effect on this computer
John
9/6/2012 9:30 AM
Windows 7 (32-bit), MS Office 2010.

Am very grateful for this info. MANY THANKS.

The problems we've been having is that the Adobe Flash (auto) update also installs Chrome. However, if/when uninstalling Chrome, links in Outlook still look for and point to Chrome.

That's probably why you need to change the value from "ChromeHTML" to "htmlfile" in each key.

I take the additional step of resetting Internet Explorer options back to Default Settings, then launching IE.
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# re: Outlook 2010–This operation has been cancelled due to restrictions in effect on this computer
Dave
9/10/2012 2:35 PM
Thanks this worked. Had 5 keys to change values in...html, htm, xhtml, shtml and xht. All values were set to Chromehtml before changing to htmlfile.
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# re: Outlook 2010–This operation has been cancelled due to restrictions in effect on this computer
Z
9/25/2012 9:14 AM
Thank you, it worked perfect and it does every time I get user online with problem!
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# re: Outlook 2010–This operation has been cancelled due to restrictions in effect on this computer
juba
11/3/2012 4:46 AM
Thank you, that worked. I've tried a few other things that didn't.
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# re: Outlook 2010–This operation has been cancelled due to restrictions in effect on this computer
pol
11/6/2012 3:14 AM
fantastic.This worked.... you saved me hours of work.thank you
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# re: Outlook 2010–This operation has been cancelled due to restrictions in effect on this computer
Afjal Nathani
11/29/2012 2:18 AM
Yes,Fantastic it saves my time.


Thanks
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# re: Outlook 2010–This operation has been cancelled due to restrictions in effect on this computer
A
2/14/2013 4:15 PM
THANK YOU THANK YOU THANK YOU
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# re: Outlook 2010–This operation has been cancelled due to restrictions in effect on this computer
Dan
4/18/2013 1:12 PM
Thanks - exact problem with Chrome. Fixed it.
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# re: Outlook 2010–This operation has been cancelled due to restrictions in effect on this computer
Itchy
5/22/2013 7:31 AM
Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Software\Classes\.html]
@="htmlfile"

[HKEY_CURRENT_USER\Software\Classes\.shtml]
@="htmlfile"

[HKEY_CURRENT_USER\Software\Classes\.htm]
@="htmlfile"

[HKEY_CURRENT_USER\Software\Classes\.xhtml]
@="htmlfile"

[HKEY_CURRENT_USER\Software\Classes\.xht]
@="htmlfile"
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# re: Outlook 2010–This operation has been cancelled due to restrictions in effect on this computer
gregory boyd
5/22/2013 10:06 AM
yeah. I'm pretty sure this lady thanks you cause this fix solved her problem.

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