Lenovo Thinkpad - Built in microphone is not working in Windows 10

Symptom:
Built in microphone is not working in Windows 10 in Lenovo Thinkpad notebook.
(In Device Manager there is no any error e.g. yellow exclamation mark.)

Solution:
Maybe the built in microphone is disabled and is not set as default.
But more likely you need to remove and reinstall the proper audio driver from Control Panel or Device Manager.

Source: Lenovo

Windows 10 - Lists of supported and not supported HP printers and scanners

HP Printers - Windows 10 Compatible Printers

HP Scanjet - Scanners not supported in Windows 10

HP Scanjet - Scanner driver and software support for Windows 10

Launch Internet Options window from Command Prompt

Internet Options window can be launched from command prompt by executing the command

inetcpl.cpl

Windows 10 Proxy server settings

Simplest solution:
Start menuLaunch Internet Options window from Command Prompt

Second solution:

Settings (1st picture)
Network & Internet (2nd picture)
Proxy
Select Automatic or Manual proxy setup. It depends on your network configuration.
(3rd and 4th picture)

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Another way of proxy setting:

Type Proxy on the start menu search and click on: Configure proxy server (1st picture)

Internet Properties: Connections / Lan settings (2nd picture)
Select Automatic or Manual proxy setup. It depends on your network configuration.
(3rd picture)

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