Can't update Photoshop CC 2015.5. Error Code 160
I've tried to download Photoshop CC 2015.5 many times but, it and keeps giving me this error code.
<PRE>Exit Code: 160
-------------------------------------- Summary --------------------------------------
- 2 fatal error(s), 0 error(s), 1 warnings(s)
FATAL: Error (Code = 160) executing in command 'SetRegistryValueCommand' for package: 'AdobePhotoshop17-Core_x64', version:17.0.1.159
FATAL: Error occurred in install of package (Name: AdobePhotoshop17-Core_x64 Version: 17.0.1.159). Error code: '160'
WARN: Error Setting Registry - Start 64-bit:1 root:2 key:SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\Photoshop.exe name:Default type:REG_SZ data:C:\Program Files\Adobe\Adobe Photoshop CC 2015.5\Photoshop.exe. Check for Registry permissions. (Error: Error 5 Access is denied.)
-------------------------------------------------------------------------------------
</PRE>
I have uninstall and reinstall Photoshop, but that doesn't work. I just don't know what to do.