Windows7 Windows 7 PC: Internet Information Services (IIS) version confirmation procedure
Windows 7: Explains how to check the installed version of Internet Information Services (IIS) using the GUI / command prompt.
Windows7 
Windows7 Windows 7 PC: Internet Information Services (IIS) construction procedure
Windows 7: Internet Information Services is not installed by default. To add features, you need to enable and install the Internet Information Services checkbox in Control Panel -> Programs and Uninstalls -> Turn Windows features on or off.
Windows7 Windows 7 PC: How to Check PC Specifications
You can check the specifications of Windows 7 from "System". This is a procedure for checking the specifications of Windows 7 by checking the number of supported bits when the operation of Windows 7 is heavy, when replacing a computer, or when installing software. This section describes how to check the processor, installed RAM, number of bits, and edition.
Windows7 Windows7 PC：How to check HDD / SSD errors with the check disk function
Checkdisk is a drive error checking tool used by the Windows OS standard. If a system error or bad sector (area where data cannot be recorded) is detected and an error is found, it may be possible to repair it with Checkdisk. This article explains how to execute the check disk and how to check the result using the event log.
Windows7 Windows7 PC: Disk defragmentation execution / log confirmation procedure
Defragmentation is a feature that reorganizes fragmented files on a drive into the correct location. You can do it with the tool "Defragment and Optimize Drives" that is available as standard in Windows 7. Defragmentation execution time may take some time depending on the capacity of the drive and the number of fragmented files. If you are using a laptop computer, we recommend that you run it with the AC adapter connected.
Windows7 Windows7 PC：Windows Memory Diagnostic execution / log confirmation procedure
If the computer does not work due to a sudden restart, blue screen error, or freeze when using Windows 7, there may be a problem with the OS, disk, or memory. First of all, we recommend the standard Windows software "Windows Memory Diagnostic". This time, I will introduce how to check the log result in the memory diagnosis and event viewer.
Windows7 Windows 7 PC: Microsoft Edge manual installation procedure
There are two manual installation methods for "New Microsoft Edge" that can also be used with Windows 7, and the installation procedure differs depending on the Internet connection environment or offline environment. This article describes two installation methods.
Windows7 Windows 7 PC：Internet Explorer How to remove (Disable)
If you no longer need Internet Explorer in your Windows 7 browser, you can use the Control Panel to uninstall (disable) Internet Explorer. * It is also possible to reinstall (enable) Internet Explorer after deleting it.
Windows Windows Client / Server OS: List of versions of the default .NET Framework
Using Windows 7 / 8.1 / 10/11 of Windows client product and Windows Server 2012 R2 / 2016/2019/2022 of Windows server product, I checked the version of .NET Framework installed by default and summarized it in the table. ..
Windows Microsoft Windows Client / Server OS: How to get ISO file for each product
The ISO file is required when installing the OS not only on physical terminals but also on virtual terminal software such as VMware, Oracle VirtualBox, and Hyper-V. Evaluation Windows ISO files can be downloaded directly from the official Microsoft website for free.
VMware VMware Workstation Player 16: Evaluation version Windows 11 installation method
To run the evaluation version of Windows 11 on VMware Workstation Player, mount the ISO file, press the "Shift + F10" key on the OS installation screen, and then bypass the TPM setting in the registry editor. * Create a LabConfig key and change the DWORD (32-bit) value and Bypass TPM Check value data from 0 to 1.
Windows8.1 Windows 8.1 PC：Internet Information Services (IIS) construction procedure
Windows 8.1 : Internet Information Services is not installed by default. To add features, you need to enable and install the Internet Information Services checkbox in Control Panel -> Uninstall a program -> Turn Windows features on or off.
Windows8.1 Windows 8.1 PC: How to disable / enable Windows firewall settings
Although the Windows firewall setting is enabled by default on a Windows 8.1 computer, the communication port may be blocked and unavailable depending on the application software you want to use. This article describes how to disable the Windows firewall that does not block the communication port.
Windows8.1 Windows 8.1 PC: “Windows Update” application confirmation / log confirmation method
On a Windows 8.1 computer, you can check the applied Windows Update updates (security patches) by displaying / outputting them using the GUI or commands (PowerShell / command prompt). In this article, we will explain the procedure for checking 5 types of updates.
Windows8.1 Windows 8.1 PC：Disk Cleanup Method
Disk Cleanup is a feature that frees up disk space by deleting unnecessary files. You can free up disk space by deleting files such as "downloaded program files", "temporary Internet files", and "Recycle Bin". Disk Cleanup is an effective method when the C drive is under pressure and Windows is slow and the drive is running low on free space.