Error 1260 or Access Denied Error when installing or updating BTM-2015

When trying to install program, the installation fails when installing giving an Access Denied error.
This issue appears to be caused by Microsoft's update release KB2918614 and/or KB3072630.

Error 1260: Windows cannot open this program because it has been prevented by a software restriction policy. For more information, open Event Viewer or contact your system administrator.

If you do receive this error, use the steps below to correct the problem. If you have not yet installed this update, go to "Hide Update" section below to hide the update so that you don’t install it at a later date.


What to Do:

Please try the following: 
  1. Download the Registry File from here.  Take the file to the computer that BTM-2015, is installed on, if the BTM computer is not connected to the Internet.  
  2. Double-click on the file.  The self-extracting program will ask where to save the Registry Entry.  Choose the Desktop. Then click ok.
  3. There will be a file on your desktop (assuming you said to save to the desktop) called ERROR1260BTM2015.reg.  Double-click on the file. You will be prompted for permission to add the entry to your Windows Registry. 
  4. Run the BTM-2015, Installer and the program should install.
If you prefer, you can manually make the registry entry yourself. Please note that editing the registry for Windows must be done with caution.
  1. Open Regedit by holding the WINDOWS key and the R key together to bring up the RUN dialog and enter REGEDIT and press ok.
  2. Locate and then click the following subkey in the registry:   HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Installer
  3. Inside the Installer key, click Edit, point to New and then click DWORD Value
  4. Type SecureRepairPolicy for the name of the DWORD and then press Enter
  5. In the Value data box, type 2, and then click OK 
  6. Locate and then click the following subkey in the registry:   HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Installer
  7. Inside the Installer key, click Edit, point to New and then click Key
  8. Type SecureRepairWhitelist for the name of the key and then press Enter
  9. Double-click the SecureRepairWhitelist key to open it.
  10. Inside the SecureRepairWhitelist key, click Edit, point to New and then click String Value
  11. Set the name of the String Value to, the following name, which includes the braces, {18153760-7AFF-4AC0-A0CB-95EA5EC060C7}.
  12. Install BTM-2015 (or update BTM-2015 if already installed).
You may need to uninstall the Windows Security Update using the Microsoft Windows® Add or Remove Programs function. Then, open the Microsoft Updates window in Internet Explorer to effectively hide the security update. This prevents the update from downloading and installing again.
Note: Security update KB2918614 was released August 12, 2014. Security update KB3072630 was released July 14, 2015. Even if you previously performed these steps for KB2918614, you need to follow these steps to prevent KB3072630 from installing.
  1. On your Windows desktop, click Start, choose Control Panel, and double-click Add or Remove Programs.
  2. In the Add or Remove Programs window, make sure the Show Updates option is checked.
  3. The update to remove appears in the grouping under Windows Server 2003 – Software Updates.
  4. Click the Security Update for Windows Server 2003 (KB2918614 & KB3072630) option in the list and click Remove.
  5. When the update is removed and no longer displays in the list, close the Add or Remove Programs window.
To hide the update so that it does not download and install again:
  1. Open an Internet Explorer window.
  2. Click the Tools menu and select Windows Update. If the Tools menu is hidden or unavailable, type Alt + T. When the Tools menu opens, select Windows Update.
  3. In the Microsoft Update window, click Custom.
  4. Removing Windows Security Updates KB2918614 & KB3072630
  5. A new window opens, displaying a list of options. Search and locate the Security Update for Windows Server 2003 (KB2918614 & KB3072630) option.
  6. When you locate the update, clear this box.
  7. The Don’t Show This Update Again check box becomes enabled. Click the check box, as shown below.
  8. This completes the procedure. Close the Microsoft Update window.