Bug ID 439280: Blue Screen error when installing VPN driver on Windows 8.1

Last Modified: Oct 06, 2020

Bug Tracker

Affected Product:  See more info
BIG-IP APM(all modules)

Known Affected Versions:
10.2.2, 10.2.4, 11.2.0, 11.2.1, 11.3.0, 11.4.0, 11.4.1, 11.5.0, 11.5.1, 11.5.1 HF1, 11.5.1 HF10, 11.5.1 HF11, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5

Fixed In:
11.6.0, 11.5.1 HF6, 11.4.1 HF6, 11.2.1 HF15, 10.2.4 HF8

Opened: Nov 28, 2013
Severity: 3-Major
Related AskF5 Article:


If client components without BZ430965 fixed are installed and then uninstalled on Windows 8.1, then the F5 Networks VPN Adapter will be uninstalled only partially. A subsequent attempt to install VPN Adapter driver on such client machine may lead to blue screen error.


Difficulty installing F5 VPN software on client system.


VPN adapter not completed uninstalled


In order to completely uninstall VPN Adapter driver: 1) Open Device Manager. 2) In the main menu select View -> Show hidden devices. 3) Expand Network adapters. 4) Right-click on F5 Networks VPN Adapter. 5) In the popup menu select Uninstall. 6) In the next window check Delete the driver software for this device.

Fix Information

When installing VPN driver on Windows 8.1 with partially uninstalled VPN driver, BSOD no longer occurs.

Behavior Change