Watchdata W 1981 Driver 1.7.46.1302
by Alcor Micro, Corp.Windows 1032-bitSHA-256 verified
- Manufacturer
- Alcor Micro, Corp.
- Device
- Watchdata W 1981
- Driver version
1.7.46.1302- Release date
- October 13, 2017
- Supported Windows
- Windows 10
- Architecture
- 32-bit (x86)
- File size
- 64 KB
- File name
39ef0835-708d-4876-9767-6d0021e990bd_9577a78aeec936750b716bb2186ef10f10f9f08c.cab- Digital signature
- Signed - catalog
SzCCID.cat - INF version
10/13/2017, 1.7.46.1302- INF provider
- AlcorMicro
- Device class
- SmartCardReader
- Source
- Microsoft Update Catalog
- Last verified
- July 8, 2026
- SHA-256
18f3d414487bd7ed57945dce66a04237221cd31b6baf2b604e1e0c5387f0a101
Supported hardware IDs (2)
Compare with your device: Device Manager → right-click the device → Properties → Details → Hardware Ids. If one of the values above matches, this driver supports your hardware.
How to install
- Create a restore point(Start → "Create a restore point" → Create), so you can roll back if anything goes wrong.
- Verify compatibility: your Windows version (Windows 10) and architecture (x86)must match this driver, and your device's Hardware ID should appear in the list above.
- Download the file using the button - it comes directly from Microsoft Update Catalog.
- Optionally verify the checksum: open PowerShell, run
Get-FileHash your-download.cab -Algorithm SHA256and compare with the SHA-256 above. - Extract the .cab archive: right-click → Extract All, or run
expand -F:* file.cab C:\driver\in Command Prompt. - Install via Device Manager: right-click your device → Update driver → Browse my computer → point to the extracted folder. Alternatively run
pnputil /add-driver C:\driver\*.inf /install. - Check Device Manager: the device should show no warning icons, and the driver version should match.
How to roll back
If the device stops working after the update: Device Manager → right-click the device → Properties → Driver tab → Roll Back Driver. If the button is greyed out, use the restore point from step 1 (Start → "Recovery" → Open System Restore).
Other versions of this driver
| Version | Released | Source |
|---|---|---|
| 1.7.46.1308 | July 13, 2018 | Microsoft Update Catalog |
| 1.7.46.1307 | December 5, 2017 | Microsoft Update Catalog |
| 1.7.46.1305 | November 14, 2017 | Microsoft Update Catalog |
| 1.7.46.1300 | July 24, 2017 | Microsoft Update Catalog |
| 1.7.46.0 | May 31, 2017 | Microsoft Update Catalog |
| 1.7.45.15 | March 15, 2017 | Microsoft Update Catalog |
| 1.7.45.3 | April 21, 2016 | Microsoft Update Catalog |
| 1.7.45.1 | February 16, 2016 | Microsoft Update Catalog |
| 1.7.44.0 | June 3, 2015 | Microsoft Update Catalog |