Acronis Files Cloud: Client errors out with "Failed to receive handshake, SSL/TLS connection failed"

Symptoms

On a Windows 7 machine, Acronis Files Cloud fails to establish connection, with the following error:

RequestError: (35, 'schannel: failed to receive handshake, SSL/TLS connection failed') 
 

Cause

This issue is related to disabling TLS 1.0 protocol due to security concerns during deployment of Acronis Cyber Cloud 7.9. Since TLS 1.0 was disabled but TLS 1.1 or 1.2 was not enabled by default on Windows 7, the machine cannot connect to datacenter.