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checks, if SEP client is installed and reads all required env-variables "C:\Users\admin\AppData\Local\Temp\pft9E08.tmp\MsiLu.exe" /p Patch.dax /i you can open the EXE via tools like 7zip etc to verify the content some additional executables, which will be executed later in the install-process (MsiLU.exe, SymDelta.exe, Xdelta3.exe) a file Patch.dax, which includes all differences between installed version and the version to be installed some central ini-files for the latest SEP-version (Setup.ini, Setaid.ini) extracts itself into a subfolder in %localappdata%\temp
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launch the executable, that fits to the locally installed SEP-version (here x.x.760) if you have an 圆4-OS then the filename MUST start with "Sep64" in the name be aware, that there are 2 files per language: one for x86 and one for 圆4 systems! select "Client-Only Patches" and then select the correct download file go to the following Symantec page to get allways to the latest available version: Troubleshooting-Guide for installing Symantec Endpoint Protection Client-Only Patches: After troubleshooting my Client-Only Patch for a while, I decided to write a small (but helpful?) Guide to understand the details of the SEP-Patch process.
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