(10240) UAC Enabled = freeze on UAC install, freeze on USB device insert - UAC Disabled = no freeze
If UAC is enabled - any action that appear to trigger an UAC check - such as installing an application or entering administrator mode, or inserting or removing an USB device - causes Windows to freeze (Image on screen, but no response on keyboard/mouse - caps lock led does not change on caps lock presses).

If UAC is disabled - no such freezes happen.

HW: Lenovo ThinkPad W500 (8Gb, 256Gb SSD, 1920x1200 display) running Windows 10 Insider TH1 Pro 10240.

July 16th, 2015 9:58am

Lars,

UAC works at my side. Windows 10 Enterprise build 10240.

There is no issues installing/running apps when enable/disable UAC settings.

The issue here might be specific, so please report this using the feedback tool, and create a new user account and check to see if the mentioned issue insists.

Regards

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July 17th, 2015 3:47am

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