The touchscreen stops responding on the Dell Inspiron 16 Plus 7640 after a Windows 11 update. The Intel Core Ultra 7 155H platform uses an I2C-connected touch digitiser that is sensitive to driver changes. Try the steps below in order.

Enable touchscreen in Device Manager Most common
Device Manager → Human Interface Devices → right-click “HID-compliant touch screen” → Enable device. If it shows as disabled, this is the fix.
Reinstall HID Touch Driver
Uninstall HID-compliant touch screen in Device Manager, download the touch driver from Dell Support for Inspiron 16 Plus 7640, install it, and restart.
Calibrate the Touch Digitiser
Search “Calibrate the screen for pen or touch input” in Windows Search. Run calibration for Touch input, tap each target point accurately.
“The HID touch screen driver was disabled in Device Manager after a Windows update. One right-click to enable fixed my Inspiron 16 Plus touchscreen.” — Syafiq, Seremban


Ryan holds a Computer Science degree and has spent over 15 years troubleshooting Windows hardware and driver issues across major laptop brands. He writes practical, step-by-step guides for everyday users at softwaredriverdownload.com.
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