This is not Adobe. Rather user to user.
What version of Premiere Elements and on what computer operating system?
If Premiere Elements 13 to 13.1, the current suggestions include
a. Do the update with antivirus and firewall(s) disabled.
b. Update from a new user account with Administrative Privileges
c. Please try deleting the following folder and then try to apply the update:
Please let us know if any of the above worked for you.