DriverCove

EW-7811UTC 802.11ac Wireless Adapter Driver 1027.5.105.2015

by Realtek8.1864-bitSHA-256 verified

Manufacturer
Realtek
Device
EW-7811UTC 802.11ac Wireless Adapter
Driver version
1027.5.105.2015
Release date
March 27, 2015
Supported Windows
Windows 8.1, Windows 8
Architecture
64-bit (x64)
File size
1.1 MB
File name
20723301_59577a4d3c3a5f089d68909d97593d4619815731.cab
INF version
03/27/2015,1027.5.0105.2015
INF provider
Realtek Semiconductor Corp.
Device class
Net
Source
Microsoft Update Catalog
Last verified
July 8, 2026
SHA-256
801cade2ef2014aa152252f6d6d80d7912822b6a24837d913af050bfd61eb2e8

Supported hardware IDs (65)

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

  1. Create a restore point(Start → "Create a restore point" → Create), so you can roll back if anything goes wrong.
  2. Verify compatibility: your Windows version (Windows 8.1, Windows 8) and architecture (x64)must match this driver, and your device's Hardware ID should appear in the list above.
  3. Download the file using the button - it comes directly from Microsoft Update Catalog.
  4. Optionally verify the checksum: open PowerShell, run Get-FileHash your-download.cab -Algorithm SHA256 and compare with the SHA-256 above.
  5. Extract the .cab archive: right-click → Extract All, or run expand -F:* file.cab C:\driver\ in Command Prompt.
  6. 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.
  7. 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).