Hi, My 7270 latitude touch screen stopped working shortly after first use (after win update worked again but for a short time). All drivers are up to date. In device manager a USB device shows as unknown (yellow warning triangle), otherwise there are no indications to the source of the problem. Right-click HID-compliant touch screen, select Uninstall device, and then, in the Uninstall Device dialog box, select Uninstall. If you see two HID-compliant touchscreen drivers, right-click the first, select Uninstall device, select Uninstall, and then repeat the process for the second driver.
| Operating System | Current | Previous | Notes | ||
|---|---|---|---|---|---|
| Interface | Driver Revision | Interface | Driver Revision | ||
| • RS-232 • USB | UniWinDriver708.zip 7.08 Driver Manual | • RS-232 • USB | EEPROM support available | ||
| • RS-232 • USB • PS/2 | 6.20cs 6.20cs XPe | N/A | Legacy TSHARC Driver | ||
| Touch Base Drivers | • RS-232 • PS/2 • USB | Available for Download | WinCE, WinXP/7/8, WinXPe/7e,Linux, MacOS | ||
| Win CE Net 4.2 | • RS-232 • PS/2 • USB | WinCE4.2 118a Drivers Manual | • RS-232 • PS/2 • USB | WinCE4.2 1.16 Drivers Manual | |
| WinCE 5.0 | • RS-232 • PS/2 • USB | WinCE5.0 1.18b Drivers Manual | • RS-232 • PS/2 • USB | WinCE5.0 1.16 Drivers Manual | |
| WinCE 6.0 | • RS-232 • PS/2 • USB | WinCE6.0 118b Drivers Manual | N/A | ||
| Linux | • RS-232 • PS/2 • USB | 3.23 Drivers Manual | • RS-232 • PS/2 • USB | 3.04c Drivers Manual | 3.23 recommended for kernels 2.6.27 and later |
| Linux | • RS-232 • UART (TTL) | V 102 User Guide | N/A | Open source kernel code for Linux development | |
| Linux | • RS-232 • PS/2 • USB | 2.07 | N/A | Recommended for legacy support of older Linux distributions | |
| MacOS9 | • USB | 1.06 | N/A | ||
| MacOSX | • USB | • Motorola 1.04 • Intel & PPC 2.1.0 | • USB | 1.03 2.00 | |
| Windows ME Window98 | • RS-232 • PS/2 • USB | UniWinDriver620cs.zip Drivers Manual | • RS-232 • PS/2 • USB | 6.19cs 6.19cs Manual | |
| Windows 95 | • RS-232 • PS/2 • USB • BUS | 5.04c Drivers Manual | • RS-232 • PS/2 • USB • BUS | 5.04b Drivers Manual | |
| Windows 3.1x | • RS-232 • PS/2 • USB | 3.01 Drivers Manual | N/A | ||
| Win NT 4.0 | • RS-232 • PS/2 • USB | 5.00 Drivers Manual | • RS-232 • PS/2 • USB | 4.01b | |
| Win CE 3.x | • RS-232 • PS/2 • USB | 1.10 Drivers Manual | 1.09 | ||
| Win CE 4.0 | • RS-232 • PS/2 • USB | x86 driver GEODEx86_1.00 ARMV4I Intel Xscale | N/A | ||
| Win CE Net 4.1 | • RS-232 • PS/2 • USB | x86 101 | N/A | ||
| DOS | • RS-232 • PS/2 | 3.04c Drivers Manual | • RS-232 • PS/2 • BUS | 3.30 | |

On your Surface Pro 3, you may encounter the following issue:
Touch firmware in Device Manager reports Code 10 (Cannot start) or Code 14 (restart required).
USB devices intermittently fail to function when they're connected to a Surface Pro 3. This may occur when you first connect the USB device or when you wake the Surface Pro 3 from sleep or hibernation.
Note Touch functionality continues to work in this situation.
This problem occurs because of a timing issue in the Inter-Integrated Circuit bus that puts the Touch firmware into an invalid state. When the Touch firmware driver is in this state, Windows sometimes fails to correctly load device drivers for attached USB devices because of a time-out.
This issue is resolved by updated UEFI firmware version 3.11.760.0. To download and install this update, go to Windows Update and search for “System Firmware Update – 3/26/2015.”
If you still encounter an error after you install the updated firmware, follow these steps:
Open Device Manager.
Under Firmware, select the Touch firmware driver.
Uninstall the driver. When you're prompted, choose to leave the existing driver in place.
After this operation is completed, scan for hardware changes, and then reinstall the Touch firmware driver when you're prompted to do this.
Restart the device.

For more information about Surface Pro 3 updates, see Surface Pro 3 update history.
