[Important] AppCheck Real-time protection will be disabled in enviroments where SHA-2 codesign is not supported. - Notice

By 1st Feburary of 2020, Microsoft will officially annouce f drops support for code sign certificates using SHA-1 hash algorithm.

So this applies to AppCheck's Real-time Protection, may cause to disable Realtime Protection, due to the failure of loading AppCheck kernel driver in environments where SHA-1 codesign signature is expired.

You can check your OS supports SHA-2 codesign by following method:
Go to "C:\Program Files\CheckMAL\AppCheck\AppCheckD.sys"
Click properties > Signatures and see if there's SHA-2 in the signature column.

Please use follwing methods if you were unable to find SHA-2 support in your system.

Especially environments in WIndows 7, and Windows Server 2008 R2 please use Windows Update to get your PC up-to-date.

In case if you are willing to selectively update to support SHA-2 feature, please download files for your operating system from following links.

[Korean]

Shortcut to 32bit update : https://www.microsoft.com/ko-kr/download/details.aspx?id=46078
Shortcut to 64bit update : https://www.microsoft.com/ko-kr/download/details.aspx?id=46148

[English]

Shortcut to 32bit update : https://www.microsoft.com/en-US/download/details.aspx?id=46078
Shortcut to 64bit update : https://www.microsoft.com/en-US/download/details.aspx?id=46148

[Japanese]

Shortcut to 32bit update : https://www.microsoft.com/ja-JP/download/details.aspx?id=46078
Shortcut to 64bit update : https://www.microsoft.com/ja-JP/download/details.aspx?id=46148

[AppCheck Update Schedule]

AppCheck 2.5.43.4 (Jan.28. 2020): Display popup to install SHA-2 support updates. (as tray notification popup)
Starting from AppCheck 2.5.44.1 AppCheck installation will fail on enviroments where SHA-2 support is not installed.