Knowledge Base

Sometimes we need to check MD5 or SHA256 checksums for downloaded files. An easiest way:

certutil -hashfile <FILE> MD5

or with PowerShell:

Get-FileHash <FILE> -Algorithm SHA256

In attempt to install winget on Windowss 11 LTSC as recommended by Microsoft I’ve got error message. Below the simple workaround

Recently upgraded CPU in my ancient laptop from i7-4800MQ to i7-4940MX, which is Extreme Edition, and need legacy Intel Extreme Tuning Utility, version XTUSetup 6.5.1.360 is compatible.

It is necessary to set Working Directory, otherwise ConEmu will not start Far Manager.

The AutoHotkey script for Win+F:

#Requires AutoHotkey v2.0

#f::
{
    SetWorkingDir("C:\Program Files\ConEmu")
    Run ("C:\Program Files\ConEmu\ConEmu64.exe")
}

Today I noticed that my computer was slower than usual. A brief investigation revealed that PowerLauncher.exe was causing other running MSI installers to fail when setting up shortcuts.

Time to time I need “quick and dirty” benchmark to check performance. Sometimes using CPU Bench from CPU-Z or AIDA, but there is quicker way with Power Shell…

I was experiencing extremely poor performance of the VMWare Workstation on a Xeon PC running Windows 11 LTSC 24H2. Below the command with some magic.

Small but useful snippet about CPU’s Name and to get it programmatically using WMI. Useful for Information and benchmarking purposes.

In some cases we need to have dedicated Drive in absence of the physical Drive. In this case we can add drive mapped to the Folder. Typically this could be done using SUBST command, but there is more convenient way.

Sometimes you need to prevent Windows updates and following restarts of the PC (for example during long endurance test while PC Stays connected to Internet). An easiest way to do this - is just set Metered Connection to public interface

Collection of the Math Examples

Collection of the Diagrams made with Mermaid

When I hold Left Alt + Tab, I am still able to select my desired window by tabbing, however when I release Alt, nothing happens. It still stuck at the small window selecting thing, I have to manually click on or hit ENTER to switch to the desired window instead of just releasing key. Looks like left Alt acts as right Alt. And the Solution is to add DWORD Value AltTabSettings and set it to 1 to the Registry:

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer