When you connect a new COM device or a USB device to your computer (USB modem, mobile phone, Bluetooth adapter, serial to USB converters, etc.), Windows detects it using Plug-n-Play and assigns it a COM port number in the range of 1 to 255 (COM1, COM2, COM3, etc.). If this device is connected again, the reserved COM (Communication, or Serial) port number is assigned to it. A new device gets the first free COM port number. It often happens that when connected, external devices create several COM ports at once. In my case after connecting a Bluetooth adapter 10!!! new COM ports have appeared in the system.
- Azure and Microsoft 365ExchangePowerShell
Mailbox Size and Quotas in Exchange 2019/2016 and Microsoft 365
March 15, 2024An on-prem Exchange or cloud Exchange Online (Microsoft 365) administrator must control user mailbox sizes. In this article, we’ll show how to get current mailbox sizes and set mailbox quotas…
- Hyper-VVMwareWindows 10Windows 11Windows Server 2016Windows Server 2019
Windows Cannot Find the Microsoft Software License Terms
April 19, 2023The error “Windows cannot find the Microsoft Software License Terms” may appear when installing the Windows 10/11 or Windows Server 2022/2019/2016 operating system on a bare-metal computer/server or on a…
This article explains how to install Windows 11 as a guest OS in a virtual machine running on VMware Workstation or VMware ESXi hypervisors. When trying to install Windows 11…
- Microsoft Office
Configuring KMS License Server for Office 2021/2019/2016 Volume Activation
March 12, 2024In this article, we’ll deal with the specifics of MS Office 2019, Office 2016, and Office LTSC 2021 (including Project and Visio) volume activation on a corporate KMS server (please…
- Hyper-VPowerShellVirtualizationWindows Server 2016Windows Server 2019
Poor Network Performance on Hyper-V VMs in Windows Server 2019
February 20, 2023Several times I came across a situation when files were copied much slower from/to virtual machines on a Hyper-V host running Windows Server 2019 than in a VM of the…
- PowerShellWindows 10Windows 11Windows Server 2019
Enter-PSSession: Running Remote Commands in Interactive Shell
March 15, 2024Enter-PSSession cmdlet allows you to establish a persistent interactive PowerShell session with a remote computer. All commands you enter in your command prompt are executed on the remote computer. In…
- Windows 10Windows 11Windows Server 2019Windows Server 2022
Memory Compression Process: High Memory and CPU Usage in Windows 10 and 11
March 16, 2024The Memory Compression feature in Windows 10 and 11 is used to optimize physical RAM utilization by compressing some of the pages in RAM. By using process memory compression, you…
Starting with Windows 8, Microsoft began to move classic Windows Control Panel features to the new Windows Settings panel. Each new Windows 10 build has more new options in Windows…
- Windows 10Windows 11
SSL Error: This Site Can’t Provide a Secure Connection in Chrome, Opera & Chromium
January 18, 2023For some reason, I could not open some HTTPS websites (not all of them!) on my Windows 10 laptop. When trying to open such a website in a browser, it…