[Windows Start] ➡️ Search: "Device Manager" ➡️ Expand "Ports (COM & LPT)" ➡️ Right-click [Silicon Labs / CH340] ➡️ Properties Inside properties, navigate to the tab. Click on the Advanced button. Locate the COM Port Number dropdown menu.
Run as administrator and enable Windows 7 compatibility mode. Also, disable antivirus temporarily during installation—some older programmer tools are flagged as potentially unwanted programs.
Unofficial portable versions exist but are not recommended as they skip driver installation. Stick to the full installer.
Download the appropriate 64-bit Windows 10 driver from the official manufacturer or trusted platform: willar programmer software for windows 10 install
If Windows 10 refuses to accept the driver, it is likely a "Driver Signature Enforcement" issue or a CH341 chip issue.
The Willar Programmer is a popular, low-cost hardware tool used to program a wide range of microcontrollers (MCUs), specifically those from the 8051 family. It's often used with chips like the .
After software installation, the driver installer may launch automatically. If not: Run as administrator and enable Windows 7 compatibility mode
His father, a man who spoke COBOL like a native tongue and considered Perl poetry, had died six months ago. Elias, a junior web dev who barely managed his own CSS, had inherited the old man’s office. And his grief. The disc felt like a message.
Most user reports indicate that the WLPRO version is the one that works reliably on Windows 10.
Alternatively, you can permanently allow unsigned drivers, but that is not recommended for security reasons. Temporary disabling is safer. Stick to the full installer
The Willar software often fails to connect if the assigned COM port is higher than Device Manager (right-click the Start button). Ports (COM & LPT)
Windows 10 blocks unsigned or legacy COM port emulators by default. Follow this sequence to map the hardware correctly: