From the site where the unofficial patch came from and info from Microsoft:
" If you have installed any of the earlier patches or workarounds, here is our recommendation for updating:
1. Reboot your system to clear any vulnerable files from memory
2. Download and apply the new patch
3. Reboot
4. Uninstall the unofficial patch, by using Add/Remove Programs on single systems. If you used msi to install the patch on multiple machines you can uninstall it with this:
msiexec.exe /X{E1CDC5B0-7AFB-11DA-8CD6-0800200C9A66} /qn
5. Re-register the .dll if you previously unregistered it (use the same command but without the "-u"):
regsvr32 %windir%\system32\shimgvw.dll
6. Reboot one more time just for good measure
From Microsoft:
Note The following steps require Administrative privileges. We recommend that you restart the computer after you apply this workaround. Alternatively, you can log out and log back in after you apply the workaround. However, we do recommend that you restart the computer.
To un-register Shimgvw.dll, follow these steps:
1.
Click Start, click Run, type "regsvr32 -u %windir%\system32\shimgvw.dll" (without the quotation marks), and then click OK.
2.
When a dialog box appears that confirms that the process has been successful, click OK.
Impact of Workaround: The Windows Picture and Fax Viewer will no longer start when users click a link to an image type that is associated with the Windows Picture and Fax Viewer.
To undo this workaround after the security update has been deployed, reregister Shimgvw.dll. To do this, use this same procedure, but replace the text in step 1 with “regsvr32 %windir%\system32\shimgvw.dll” (without the quotation marks).