How to repair this aswStm.sys error from Avast?

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1

It says its an Avast anti-virus file when i check this website https://www.file.net/process/aswstm.sys.html Can anyone help me with this problem, it suddenly destroyed my O.S and can’t use the PC right now for work…

https://i.imgur.com/KTw5Zh0l.jpg