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When I download a program an click to install it a box pops up saying the download I am trying to install is not a valid Win32 application

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here are a few examples of updates I downloaded from Piriform.com all are .exe downloads ccleaner OK Dload & install speccy OK Dload & install defraggler OK Dload NO install recuva OK Dload NO install


Malwarebytes.org OK Dload & install

fileseeksetup-2.1.0(2).exe OK Dload NO install

here are a few examples of updates I downloaded from Piriform.com all are .exe downloads ccleaner OK Dload & install speccy OK Dload & install defraggler OK Dload NO install recuva OK Dload NO install ------------------------------------------------------------------ Malwarebytes.org OK Dload & install fileseeksetup-2.1.0(2).exe OK Dload NO install

Modified by rburrhead