When installing Quicktime - couldnot open HKEY_current_user\software\micro

When installing Quicktime - I get a message that says Could not open HKEYcurrentuser\software\microsoft\InternetExplorer\media\mimetypes? Only suggestions???

Please go through below MS Community forum. To restore the access to registry
http://answers.microsoft.com/en-us/windows/forum/windows_7-system/access-denied-setting-owner-andor-permissions-on/71cdd66a-75ce-4e79-bace-89637e0dacae?page=2
http://social.technet.microsoft.com/Forums/windows/en-US/56fed319-a532-46a4-a384-fd795998c4a3/regedit-permissions-access-denied-or-error-while-deleting-key-even-as-admin?forum=w7itproinstall
Regards,
Manjunath Sullad

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This is the error I receive when trying to install Quicktime: "Could not open key: HKEYLOCALMACHINE|Software|Classes|QuickTimePlayerLib.QuickTimePlayerApp|CLSID. Verify that you have access to that key."
I have manually edited the Regedit permissions to include all, restarted the computer, and tried again... get the same Error message. Thanks, Merber

http://docs.info.apple.com/article.html?artnum=304546

Error when installing Quicktime

Could not open key: HKEYLOCALMACHINE\Software\Classes\QuickTimePlayerLib.QuickTimePlayerApp\CLSID. Verify that you have sufficent access to that key, or contact your support personnel
Somebody please help me

I would like to thank all the posters who replied. Everyone added important information to help figure this out.
Here's what I did, step by step.
1) Click Start, then Run, then type regedit and press OK.
2) Open HKEYLOCALMACHINE, then SOFTWARE, then Classes. Scroll down to QuickTimePlayerLib.QuickTimePlayerApp (or whatever key that you're getting an Access Denied error)
3) Right click on it (you might have to do it twice).
4) Select Permissions after ignoring any messages telling you that you don't have access
5) Once inside Permissions, click Advanced, then Owner, then click on your account, then press Apply, then OK
6) Next click Add, then Advanced, then Find Now
7) Hold down the CTRL key and click on Administrators, your own account, and SYSTEM
8) Click on Administrators, then click the Full Control checkbox. The "Read" checkbox will automatically get checked, then press Apply
9) Do this for each account. Hopefully once you do it for Administrators the others will already have Full Control checked and "Apply" will be greyed out. Press OK when you're done.
10) Next click on CLSID back in the registry editor and repeat steps 3 through 9.
11) Try installing Quicktime again and when you get another Access Denied error, note the registry key and go back and repeat steps 2 through 9 for that key.
12) Keeping trying to install Quicktime until you've resolved all the permissions for all the keys that this pathetic setup script requires
13) Eventually it will install successfully.

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Hello,
I downloaded Quicktime on my computer and got an error message when installing it The error message says: "Itune + Quicktime error installation package. Error code 2738.
Installation of Quicktime did not complete successfully. ITune requires Quicktime."
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b noir wrote:
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http://www.apple.com/quicktime/download/win.html
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http://support.microsoft.com/kb/290301/
(To run the program – All Programs>>Windows Install)
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XP
http://support.apple.com/kb/HT1925
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I'm having the same problem, but so far, none of the solutions I've seen on other threads have worked. I've made sure that I have permissions on everything, but the registry still won't give me access. I'm starting to think that my registry (or at least any keys associated to QuickTime*) might be corrupted.
By the way BDude004, in any earlier versions of iTunes, did you have any errors pop up, talking about errors changing filetypes? that happened to me often, and I'm wondering if it was a precursor to this registry problem.
* I say this because I get the same "Cannot open QuickTime.[some QT associated filetype]: Error while opening key." message whenever I click on that key in the registry editor.

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I currently have Quicktime player version 7.1.3, and am trying to update the software to the latest version 7.6.4. When I try to run the installation, I get a error message that installation can not continue with the error given as "2756".
This happens when I try to install the new software automatically, manually, and when trying to uninstall the existing Quicktime version. I have downloaded the installation package manually, as well as using the Apple update software.
Any ideas on how to fix this? or at least look up the error code?
Windows XP-SP2, IE 7, Office Pro 2003-SP1, ThinkPad T-60 Laptop, Symantec Anti-Virus 9.0, current automatic updates with all software.

I am guessing this is a Windows Installer error, you can look up the number here:
http://msdn.microsoft.com/en-us/library/aa372835%28VS.85%29.aspx
I don't think it is much help though.
If you don't mind removing your old Quicktime - and therefore not having Quicktime at all if this doesn't work, try the following.
Download the version of Quicktime that does not include iTunes from here:
http://www.apple.com/quicktime/download/win.html
Download and install Microsoft Installer cleanup utility, there are instructions on the page as well as the download. Note that what you download is the installer not the program – you have to run it to install the program. The installer doesn't give any message to confirm the installation.
http://support.microsoft.com/kb/290301/
(To run the program – All Programs>>Windows Install)
Now use the following method to remove Quicktime:
XP
http://support.apple.com/kb/HT1925
I know that the uninstall won't work, but delete the files and folders as directed in the method.
Run the Microsoft Installer Cleanup Utility. (Start > All Programs > Windows Install Clean Up)
Remove any references you find to Quicktime.
If you don’t see an entry for Quicktime, look out for blank entries or numeric entries that look like version numbers i.e. 7.x for Quicktime.
restart your PC
Install the stand alone Quicktime and cross fingers..

Error when installing Quicktime 7.1.3

I'm having trouble updating my iTunes/QuickTime to the newest version. The error I get is:
Could not open key:
HKEYLOCALMACHINE\Software\Classes\QuickTimePlayerLib.QuickTimePlayerApp\CLSID. Verify that you have sufficient access to that key, or contact your support personnel. I should have access to anything, there are two local admin accounts and I have a domain admin account on the domain that the computer belongs to.
I have since successfully uninstalled iTunes. I uninstalled QuickTime and got the same error, with a few others registry related, but it continued and said it finished uninstalling successfully.
Now I try to install the standalone QuickTime 7.1.3 and get the same error and it rolls back the installation. I found a bunch of QuickTime related keys in HKEYLOCALMACHINE\Software\Classes but if I even click on them I get an error: Cannot open "whatever key": Error while opening key.
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I'm having the same problem, but so far, none of the solutions I've seen on other threads have worked. I've made sure that I have permissions on everything, but the registry still won't give me access. I'm starting to think that my registry (or at least any keys associated to QuickTime*) might be corrupted.
By the way BDude004, in any earlier versions of iTunes, did you have any errors pop up, talking about errors changing filetypes? that happened to me often, and I'm wondering if it was a precursor to this registry problem.
* I say this because I get the same "Cannot open QuickTime.[some QT associated filetype]: Error while opening key." message whenever I click on that key in the registry editor.

When installing Quicktime - couldnot open HKEY_current_user\software\micro

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