If you bought a "CH341A Mini Programmer" online (usually a black or green PCB costing around $5-$10), it likely came with a CD containing outdated, Chinese-only software. That official software is notorious for:
Many third-party websites bundle malware or fake installers with this software. Always verify file hashes. The legitimate file is typically a .rar or .7z archive containing an .exe and a Drivers folder. Neoprogrammer 2.1.0.19 Download