Error 126 is a very commonly occurring error that is often the result of damaged system files of Windows. They usually occur during the installation of some Windows program or application. When Error 126 is generated, it terminates the installation process almost instantly.
It is important to take corrective measures immediately to ensure that no such problems are encountered again in the future.
Error CausesThere are a variety of conditions that may trigger Error 126. These conditions are listed below as follows.
When any of the above-listed conditions occur, the corrupt system files will go to the improper links or missing information.
Eventually, the problems with the files will keep the applications or programs from responding in the usual manner. Whatever are the reasons for error generation, it is of utmost importance that the error is removed to ensure smooth functioning of the system.
There are many different ways this error can be rectified. However, the two most effective solutions are listed below as follows.

When opened you will be greeted with general settings window. These are settings for power toys themselves, Here you can check for updates, change the looks of power toys, run it on system startup and run them as administrator. Set them up so they best suit your needs.
The color picker will let you as the name suggests pick colors, it will sample colors from running applications and windows, snap their values, and place them in the clipboard. A useful application if you are working as a graphic designer, want to create some cool word document, or just want to compare the difference between colors.
After the Color Picker is activated, hover your mouse cursor over the color you would like to copy and left-click the mouse button to select a color. If you want to see the area around your cursor in more detail, scroll up to zoom in. The copied color will be stored in your clipboard in the format that is configured in the settings (HEX by default). The editor lets you see the history of picked colors (up to 20) and copy their representation in any predefined string format. You can configure what color formats are visible in the editor, along with the order that they appear. This configuration can be found in PowerToys settings. The editor also allows you to fine-tune any picked color or get a new similar color. Editor previews different shades of currently selected color - 2 lighter and 2 darker ones. Clicking on any of those alternative color shades will add the selection to the history of picked colors (appears on the top of the colors history list). Color in the middle represents your currently selected color from the history of the colors. By clicking on it, the fine-tuning configuration control will appear, which will let you change the HUE or RGB values of the current color. Pressing OK will add newly configured color into the history of the colors.
FancyZones is a window manager utility for arranging and snapping windows into efficient layouts to improve the speed of your workflow and restore layouts quickly. FancyZones allows the user to define a set of window locations for a desktop that are drag targets for windows. When the user drags a window into a zone, the window is resized and repositioned to fill that zone. When first launched, the zones editor presents a list of layouts that can be adjusted by how many windows are on the monitor. Choosing a layout shows a preview of that layout on the monitor. The selected layout is applied automatically.
Only 3 options here but maybe some are important to you. This extension lets you enable SVG file preview in File Explorer, enable Markdown preview, and enable SVG thumbnails. Turn on each one you might need.
Image Resizer is a Windows shell extension for bulk image-resizing. After installing PowerToys, right-click on one or more selected image files in File Explorer, and then select Resize pictures from the menu. You can specify your own sizes if you want, you can resize when dragging files, you can overwrite files or make new copies of new sizes, and many more options. A very useful tool I am sure plenty of users can use since this eliminates the need for pictures or any other image application for common resizing tasks.
The PowerToys Keyboard Manager enables you to redefine keys on your keyboard. For example, you can exchange the letter A for the letter D on your keyboard. When you select the A key, a D will display. You can also exchange shortcut key combinations. For example, the shortcut key, Ctrl+C, will copy the text in Microsoft Word. With the PowerToys Keyboard Manager utility, you can exchange that shortcut for ⊞ Win+C). Now, ⊞ Win+C) will copy text. If you do not specify a targeted application in PowerToys Keyboard Manager, the shortcut exchange will be applied globally across Windows. PowerToys Keyboard Manager must be enabled (with PowerToys running in the background) for remapped keys and shortcuts to be applied. If PowerToys is not running, key remapping will no longer be applied.
PowerRename is a bulk renaming tool that enables you to:
PowerToys Run is a quick launcher for power users that contains some additional features without sacrificing performance.
PowerToys Run features include:
> (for example, > Shell:startup will open the Windows startup folder)
This guide uses PowerToys to display common keyboard shortcuts that use the Windows ⊞ key. Windows key keyboard shortcuts can be used while the guide is being shown and the result of those shortcuts (active window moved, arrow shortcut behavior changes, etc) will be displayed in the guide. Releasing the Windows ⊞ key will make the overlay disappear. Tapping the Windows ⊞ key will display the Windows Start menu.
Hey, you made it till the end, thank you for reading and I hope to see you soon. Besides this, you may also experience this error message when you format a hard disk drive to install Windows 7.“An internal error has occurred: The parameter is incorrect: (0x80070057)”
Error Causes
Fear not because we had this issue and tried several things in order to overcome the problem and after some time here is a list of what can you do if you are facing this exact issue. The list is written from most simple solutions to more complex ones and it is advisable to follow it as presented. That being said, let's dive into solving the problem.
The operation timed out waiting for a response from the receiving (POP) server 0x8004210a Task 'SMTP server name - Sending and Receiving reported error' (0x8004210A): 'The operation timed out waiting for a response from the receiving (POP) server. If you continue to receive this message, contact your server administrator or Internet service provider (ISP).'
0x80004005 Outlook is an error that users commonly encounter while attempting to send or receive emails on Outlook.
The message that appears usually states “This message could not be sent. Try sending the message again or contact your network administrator."
The client operation failed. Error is [OX80004005- 0X0004B9-OXOO501].
This error is usually caused by a problem in the Local Area Network or LAN. What actually happens is that signals with the wireless LAN are lost or a connection problem occurs within the network cable.
As a result, the 0x80004005 Outlook error is triggered while sending or receiving an email. Sometimes the problem goes away on its own. However, if it recurs after a few hours, it shows that some problem exists within the network.
Also, it is important to understand that different factors can affect the quality of wireless connections in a network.
For instance, garage door openers, microwave ovens, and Bluetooth devices can easily become obstacles, disrupting the connection and causing the quality to degrade. Other causes are listed below as follows.
It is a must to fix this error otherwise potential risks associate with this error such as permanent damage and blue screens.
There are two ways to fix this error and both are listed below as follows.
Both these workarounds will work. Therefore, it is advised that you employ any one of them as per your needs.