This seems a big topic, so I’ll try to clarify the procedure (19 Feb 2015)
If you are getting the above error during the install of Sony Vegas ( I got it when trying to update VP11 to 701)
Go to folder the following folder, (username is usually your name or the name of the PC)
You could try a windows search if thats easier ( (Windows key + F)
Type this into windows search “SCS_INSTALLER*.log” to see if you can find it that way, don’t forget the asterix *.
If you cannot find this folder it may be hidden
You need to go to Folder and search options, view tab and check
“Show hidden files, folders and drives” like in this picture ( Thanks to heartmiso)
look at the log file name,which looks something like this “SCS_INSTALLER_14.log” perhaps with a different number at the end.
Open file with Notepad, right click on filename then choose OPEN
Note: the file could be any number after the SCS_INSTALLER_XX.log
To find the ERROR, use CTRL+F in Notepad and enter “error code” and then do, or go to Edit and choose Find… and then do Find Next
Look for this Error Code: FINISH TXT ERROR: -2147163964 occurred during installation and the following text…
The Installer has insufficient privileges to modify this file: C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Sony\Vegas Pro 11.0\Vegas Pro 11.0 (64-bit).lnk.
To get the privileges the software requires, Navigate to the folder that is mentioned in Notepad.
Eg. C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Sony\Vegas Pro 11.0,
If you see a padlock on the folder icon as per image below, then remove it.
If you do not know how to do that then use this website to find out how