Windows 10 - Error 30800 / The server name cannot be resolved / SMB & NetBIOS issue

Can not connect to a network drive/shared folder?

Can not print any document on a network printer?

Error #30800 in the Event Log (Application and Services Logs - Microsoft - Windows - SMBClient - Connectivity)?
The server name cannot be resolved.
Error: The requested interface is not supported.
Server name: x.x.x.x
Guidance:
The client cannot resolve the server address in DNS or WINS. This issue often manifests immediately after joining a computer to the domain, when the client's DNS registration may not yet have propagated to all DNS servers. You should also expect this event at system startup on a DNS server (such as a domain controller) that points to itself for the primary DNS. You should validate the DNS client settings on this computer using IPCONFIG /ALL and NSLOOKUP.

Windows 10 - Recovery / Error code 0xc0000185 / BCD / BitLocker

Recently I suddenly (I thought so) faced with a problem of booting my PC. Windows 10 (LTSB 1607) can't start and shows Recovery blue screen with an error "Your PC needs to be repaired. File: 0xc0000185\EFI\MICROSOFT\BOOT\BCD. Error code: 0xc0000185".

None of the tips from the Internet (e.g. http://www.pcerror-fix.com/solved-windows-10-boot-configuration-data-error-code-0xc0000185) didn't help me (there was no recovery point; bootrec doesn't identified Windows Installation).

Windows 10 please STOP reboot my PC/Laptop

Most of all in Windows 10 I hate preinstalled games and that it rebooting my laptop as he wants (most often at night and mostly without any notification).
To prevent it I have found a simple solution - disable "Reboot" task. But everything turned out to be more difficult. Windows still reboot my laptop (the screenshot below shows that task started even it disabled ("Отключено" in Russian)).

Therefore I decide to write a powershell script to prevent it once and for all.

Windows 10: DNS Client load CPU in case of big hosts file

After installing Fall Creators Update (KB4058043, KB4057247, KB4055237, KB4055994) on Windows 10 Pro 1709 (16299.125) I noticed a long delay in the opening of websites.

Symptoms

• The DNS Client service load is about 25% CPU.
• You can't open any website and get access to the internet at all for several minutes.

Windows 10 Pro VT-x and Hyper-V features

The interesting thing that I recently faced.
Windows 10 Pro has a built-in Hyper-V, and I used it sometimes. At one moment I needed to install the Android emulator NOX. The operating system boots and runs very slowly.
After that, I checked whether the Intel Virtualization Technology (VT-x) feature is enabled - SecurAble show that Hardware Virtualization is not supported. I checked the BIOS - VT-x is enabled. Hyper-V works.
It turned out that Hyper-V reserves the VT-x function only for themselves. Keep in mind.
Good advice how to use Hyper-V and other hypervisors on the same computer - https://mlichtenberg.wordpress.com/2013/11/22/running-hyper-v-and-virtualbox-on-the-same-computer/

SecurAble without Hyper-V feature:

 

SecurAble with installed Hyper-V feature: