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Windows 7: Unable to install exe files when they are 100+ MB

08 Jul 2016   #1

Windows 7 Ultimate x64 NL
Unable to install exe files when they are 100+ MB

For sometime now. It seems I can not install exe files, but only if their file size exceeds 100MB. The error message states something like local group policies prevent this installation ask your system admin.

I have been hunting inside register and using gpedit.msc but was unsuccessful. Any hint would be appreciated indeed.

If I recall correctly it had something to do with hardening the Windows7 installation on this machine.

My System SpecsSystem Spec
08 Jul 2016   #2

W7 home premium 32bit/W7HP 64bit/w10 tp insider ring

Hi Polundra,
run this command it will show you all your current policies


amend as required

My System SpecsSystem Spec
09 Jul 2016   #3

Windows 7 Ultimate x64 NL

Appreciated, will take a look later this day.
My System SpecsSystem Spec

13 Jul 2016   #4

Windows 7 Ultimate x64 NL
The cause and solution

Installing was blocked due too CryptoLockerPrevention. One of the rules prevents executing \AppData\Local\Temp\*.7z or similar commands to execute.

I found the setting in regedit. After I observed the error code in MMC - Logbook.

id event 866 - Software Restriction Policies
some {abracadabra}


Searching for {abracadabra} in regedit gave me the exact rule.

Solution: Just rename the 7z in 8z. Reboot and it will not trigger. After install rename again also reboot and all security is fine again.
My System SpecsSystem Spec

 Unable to install exe files when they are 100+ MB

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