This is common with the Intel HD Graphics driver on Win7. Disable "Fast Startup" in Power Options and update your BIOS to the latest version (from Casper’s support site).
Common issues caused by missing or outdated drivers include:
Download an older NVIDIA driver from the official archive (version 382.05 or earlier). Casper A15he’s GPU may use a custom device ID. Use a tool like NVCleanstall to strip the driver installer of version checks. Casper A15he Driver Win7
Open Device Manager → right-click unknown device → Properties → Details → Hardware Ids. Paste them in a reply below, and I’ll help you find the exact driver.
Microsoft ended mainstream support for Windows 7 in 2020, and many hardware manufacturers, including Casper, have shifted their driver development focus to Windows 10 and 11. If you own a Casper A15he and need to run Windows 7 for legacy software, compatibility, or personal preference, you have likely experienced the frustration of missing drivers—from Wi-Fi adapters to chipset components. This is common with the Intel HD Graphics driver on Win7
Once all Casper A15he drivers for Win7 are correctly installed, optimize your system:
You cannot simply install "one driver." Windows 7 requires a specific order of operations. Below is the critical driver checklist for the A15he to function correctly: Casper A15he’s GPU may use a custom device ID
Follow this sequence meticulously. Installing drivers out of order can cause conflicts (e.g., installing NVIDIA drivers before Intel graphics may fail).