HT5770 Cannot install QuickTime 7.x security update and why does the file say 'unknown publisher'?

I downloaded QuickTime 7.x security update (recommended by my VP), but I cannot run. I am getting the message 'Unknown Publisher', but when I click run, nothing happens?

Hello,
Seems someone from Apple corrected the problem.
I just downloaded a new version, again, due to upgrade to a larger HDD, and the new installer does have Apple name identified.
So try it again.
Good luck.

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So is it actually installed, or is it not? If not, download and run the offline installers:
Flash Player for ActiveX (Internet Explorer)
Flash Player Plug-in (All other browsers)
If it still does not work correctly, check
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http://forums.adobe.com/thread/867968
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Hello,
I need help. This is for one of the computers at work. We are doing a system overhaul and I needed to upgrade the G5 PowerPC. We bought the Tiger install disk. I backed up all the files to an external drive and decided to just to a complete wipe of the hard drive. I chose the Erase and Install option.
No problems. I did not install any other software. I did not change any settings. The only thing that I did was run the software updates. There were some security updates and one for quicktime and the one the OS X and a few others.
It was after the update that I begin to have problems. I was having some freeze up errors yesterday and then I did the whole process over again. So I thought it was done and then this morning I come in and turn it on and it gets stuck at the blue screen with the pointer. I ran Disk Utility and there are no bad sectors. It repaired some permissions but still no fix. I checked the login startup items and there is nothing there except an iTunes helper application. Like I said, I have installed nothing else except the update. I ran the hardware test and everything is good.
I am going to Erase and Install again. But I need to know if there is something wrong with the updates. A few people seem to be pointing fingers at Quicktime. But I don't want to install updates without knowing what is going on. Can someone help me. Thanks.

We are doing a system overhaul and I needed to upgrade the G5 PowerPC. <--
Hi Jay,
I don't know if I can help but I'm also going through Tiger installation problems on a G4. But first:
What version of OS X was on the G5 when you began the upgrade? Panther?
Was it the retail DVD in the black and silver box? This version will install on any Mac G3, G4 or G5. Or did it come from another Mac? Non native installs can cause problems.
I backed up all the files to an external drive and decided to just to a complete wipe of the hard drive. I chose the Erase and Install option. <--
If an earlier version of OS X was already on it, it would've been better to do an Archive & Install, which would preserve your files and settings. A&I is in the Options when the button is clicked below the Erase and Install icon. It sounds like your finder can't find the system you installed. Erasing may have done this. The beauty of Archive & Install is that, it installs a fresh copy of OS X on a preserved software that have left a warm bed for them not an empty cold bed system. Anyway that's my take on it. The best way to "Erase and Install" is with the install DVD by booting up from it. Hold down the C key while you boot up. Then go to Disk Utilities in the menu and click on it and follow the steps to Erase and Install. Then follow the steps to place a new system on the hard drive. But go with Archive & Install. It works.
I am going to Erase and Install again. But I need to know if there is something wrong with the updates. <--
Others have reported problems after updates. Were they Combo updates? The software pages have smaller versions of Tiger on the Tiger getting started pages in the Apple website. But IMO it's not the updates. Your system needs them and will update what's current. Like I said I don't know for sure but Erase and Install may lie at the core of the problem. If possible try to get a version of Panther (10.3) and go from there. AND try to find out what version of OS X was on the G5 when you took it over. But to be sure, if you can, call a certified Mac dealership and see if they can help by answering questions. He may ask you if you have Apple Care their insurance program. If the warranty is still good you can get some repair work done if necessary.
Report back after your trip.
Rob<br>
G4 AGP 400MHz 44GB 512MB - iMac G3 400MHz 10GB 320MB Mac OS X (10.4.8)

I can no longer open any attachments that are sent to me. I click on and get cannot preview (but have had this for ages). I am clicking on download and nothing happens. It does not download. I clicked to install a new version after updating and clicking r

I can no longer open any attachments that are sent to me. I click on and get cannot preview (but have had this for ages). I am clicking on download and nothing happens. It does not download. I clicked to install a new version after updating and clicking repair. But still the attachments won't open including invoices I have received today. It is all attachments not just pdfs.

Angela Richens wrote:
It is all attachments not just pdfs.
Then most likely it is not caused by Adobe Reader.
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Cannot install Quicktime

I've had an enforced upgrade (due to iPhone) go bad on me!
I've upgraded to iTunes 8.1.1 - as suggested to match my new iPhone. However, I can't install Quicktime in order to run it! It gets to the point where it's installing files (around 12%) and then fails suddenly - with the following messages:
"There were errors installing the software"
"Please try installing again"
I've even tried with older versions of Quicktime (from 7.3.1 upwards) but still, no dice.
I've reset PRAM, deleted and reinstalled itunes, deleted all my old quicktime files. No joy.
Any help would be most appreciated, thanks in advance!

Welcome to the forums!
deleted all my old quicktime files
Bad move, as it is an integrated part of the OS.
Try running the 10.4.11 COMBO installer again.
Don't forget to use the Combo Updater, and to download the correct version for your Mac (PPC or Intel):
http://support.apple.com/downloads/MacOS_X_10_4_11_Combo_Update__Intel
http://support.apple.com/downloads/MacOS_X_10_4_11_Combo_Update__PPC)
Then update Quicktime to version 7.6
Message was edited by: Klaus1

Why does the Flash player update push me to install McAfee Security Scan Plus?

When Flash asks me if I want to update, it takes me to an Adobe page to update it, but there is a checkbox already checked to install McAfee Security Scan Plus. I already have an anti-virus program installed. Why does the flash update page assume that I want to install this software?

Generally this occurs because there's a third-party plug-in that affects how the JavaScript on the page got executed. Ghostery, AdBlock Pro and NoScript are common candidates.
Under normal operating conditions, you should see an opt-out dialog like the one below. While cost-recovery measure are a reality for a product that is tremendously expensive to develop and distribute free of charge, the intent is absolutely to allow you to opt out.
If you want to avoid the download and installation experience for Flash altogether, switch to a browser that includes Flash Player as a built-in component, like Google Chrome or Internet Explorer on Windows 8 and higher.

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I hope someone can help!
I started with 10.5.5, but was having lots of problems with MobileMe. I have downloaded 10.5.6 which I have heard is more stable but it won't allow me to install it with the following error message "You cannot install Mac OS X Server Update on this volume. This volume does not meet the requirements for this update." I have then downloaded 10.5.7 which installs fine but does not fix my original problem and I know it is less stable that 10.5.6. I have tried to install 10.5.6 again but same problem. Any ideas of what I have to do to my HD to make it happen?
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Before you install a system update I suggest you see the following:
How to Install OS X Updates Successfully
A. Repair the hard drive and permissions:
Repairing the Hard Drive and Permissions
Boot from your OS X Installer disc. After the installer loads select your language and click on the Continue button. Then select Disk Utility from the Installer menu (Utilities menu for Tiger.) After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer. Now shutdown the computer for a couple of minutes and then restart normally.
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B. Make a bootable backup of your current working system:
How to Clone Using Restore Option of Disk Utility
1. Open Disk Utility from the Utilities folder.
2. Select the backup or destination volume from the left side list.
3. Click on the Erase tab in the DU main window. Set the format type to Mac OS Extended (journaled, if available) and click on the Erase button. This step can be skipped if the destination has already been freshly erased.
4. Click on the Restore tab in the DU main window.
5. Select the backup or destination volume from the left side list and drag it to the Destination entry field.
6. Select the startup or source volume from the left side list and drag it to the Source entry field.
7. Double-check you got it right, then click on the Restore button.
C. Important: Please read before installing
1. If you have a FireWire hard drive connected, disconnect it before installing the update unless you will boot from this drive and install the update on it. Reconnect it and turn it back on after installation is complete and you've restarted.
2. You may experience unexpected results if you have installed third-party system software modifications, or if you have modified the operating system through other means. (This does not apply to normal application software installation.)
3. The installation process should not be interrupted. If a power outage or other interruption occurs during installation, use the standalone installer (see below) from Apple Downloads to update. While the installation is in progress do not use the computer.
D. Download and install update(s):
1. Use Software Update, or
2. Download standalone updater(s).

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In some cases, this issue is caused by a hardware fault. A loose connection, a short circuit, or a microscopic break in a solder joint may open and close depending on temperature, making the failure intermittent.
Test after taking each of the following steps that you haven't already taken. Back up all data before making any changes.
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Be sure to read the caveats at the end.
Lion / Mountain Lion's package installer will refuse to install superseded versions of AirPort Utility. Instead you will need to use a package extractor such as Pacifist or unpkg. Pacifist is shareware, unpkg is free.
Download Pacifist here: http://www.charlessoft.com/
Download unpkg here: http://www.timdoug.com/unpkg/
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Open Pacifist and from its File menu, navigate to the package and open it.
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If you happen to have an archived copy of the AU 5.6 app somewhere, such as a Time Machine backup or equivalent, you can simply restore it or drag the app to your Lion / Mountain Lion system's Utilities folder instead of resorting to the above procedure. It will run without complaint. It is only the package installer that is the problem.
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It is not asking what part of your country you are in, but what country/region you are in.
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HT5770 Cannot install QuickTime 7.x security update and why does the file say 'unknown publisher'?

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