Troy used the browser to download the channel, and the system automatically turned off the download function.

The browser download channel has been used by Trojans. In this case, even if the browser is changed, it will not work. You need to use anti-virus software to detect the virus, and then select reset in the advanced settings in the Internet options of the browser.

Trojan horse, also known as Trojan virus, refers to a malicious code with special functions hidden in normal programs, which has special functions such as destroying and deleting files, sending passwords, recording keyboards, and attacking Dos.