Windows Defender Definition Update Failed
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Windows Defender Definition Update Failed 5,0/5 6998 votes
Windows Defender Definition Update Failed Version
Then I decided to try to find an older Windows Defender Definitions update. I found a Version 1.293.1564. Windows update is trying to install Version 1.293.1899 (That failed).
Windows Defender Definition Update Fails
This package will help you install the latest Windows Defender definition updates. Is a free program that helps protect your computer against pop-ups, slow performance, and security threats caused by spyware and other unwanted software.