How to Fix Windows 10 Error 0xC1900200, 0x20008

Although the UWP platform is still new, it is working efficiently and significantly and it’s apparent that Microsoft is betting big on it. It helps developers in building applications for Windows 10 that are more modern and beautiful as well as responsive with the help of the .NET Core and XAML. However, all things considered, it still isn’t perfect and it could still encounter some errors. One of these errors is the Windows.UI.Xaml.Markup.XamlParseException UWP app error. This particular error can occur to any Universal Windows Platform or UWP application and according to security experts, it is due to some XAML parsing error. To fix this error, you can try to reinstall the faulty program or check its privacy settings. You can also run both the Program Compatibility and Windows Store Apps troubleshooters as well as run System Restore. For more information, check out the given options below.

Option 1 – Try to reinstall the faulty application

If you encounter this error in an application that is not a system-related one, then you can just uninstall it from the Windows 10 Settings app and then reinstall it again from the Microsoft Store. On the other hand, if it is a system application like the Camera or Calculator app, you can just uninstall and reinstall it using a PowerShell script.

Option 2 – Try to check the Privacy Settings of the concerned app

You might also want to check if all the Privacy Settings required for a certain application are configured properly as it could also cause issues like the Windows.UI.Xaml.Markup.XamlParseException UWP app error.

Option 3 – Try to run the Program Compatibility Troubleshooter

You might also want to run the Program Compatibility Troubleshooter. This built-in troubleshooter is available in the Windows Update & Security section. From there, select Troubleshoot. This will find a list of programs for you and since you have already downloaded the driver files, just click on Not Listed located at the top of the program list. After that, browse and select the driver files and then let the program do its job. In addition, you can try to run the Windows Store apps troubleshooter as it can also help you resolve the problem.

Option 4 – Run System Restore

If you have recently made changes in your computer’s settings, you could also run System Restore to fix the Windows.UI.Xaml.Markup.XamlParseException UWP app error. How? Refer to these steps:

• Tap the Win + R keys to open the Run dialog box.
• After that, type in “sysdm.cpl” in the field and tap Enter.
• Next, go to the System Protection tab then click the System Restore button. This will open a new window where you have to select your preferred System Restore point.
• After that, follow the on-screen instructions to finish the process and then restart your computer and check if the problem is fixed or not.

Hello everyone and welcome to our new Windows 10 tips and tricks article. Today we will be focusing on small Windows tricks that could prove very useful in everyday workflow and hopefully make your life easier by implementing them in your daily routine. I am very excited to share this with you all and I hope that you will use them from now on. That being said let us begin.

Tip 1: Minimize all open windows except one.

Daily to the daily routine can involve many opened windows on a desktop and sometimes things can get messy, if you want to minimize all windows to the taskbar except one do this: Click on one window thus selecting him, click and hold the left mouse button on that windows title bar, now shake it up and down and all other windows will escape down to taskbar leaving only one you are shaking on the desktop.

Tip 2: Open the Secret Windows menu.

Through our tutorials on various errors and fixes, we have used this method already but here it is again since it is worth mentioning. If you want to open the command prompt easy and fast, or device manager, event viewer, shut down, etc. In order to open this secret menu all you need to do is press ⊞ WINDOWS + X.

Tip 3: Create an Event without opening the calendar application.

You can easily create an event without opening a calendar application, all you have to do is left-click on the clock in the taskbar, click once on a date for the event, and under calendar in event field type event description. The event will show in the calendar application like it was entered there.

Tip 4: Taking a screenshot.

This one is my favorite and it speeds up workflow very very much. Typically you take screenshots by pressing the PrntScr button on your keyboard. Now, the problem with this approach is that the screen is placed in computer memory, in the clipboard and you will need another picture processing application in order to save it. Now if you would press ⊞ WINDOWS + PrntScr, the picture would be automatically saved in your pictures/screenshots folder. And if that is not enough, you can press ⊞ WINDOWS + S + SHIFT to start Snip & Sketch tool and select the area which you would like to screen capture, this method will also place pictures in the clipboard.

Tip 5: Open pinned applications in your taskbar with your keyboard.

We have covered this one in our Windows keyboard shortcuts tips and tricks here, but if you missed that article here is the tip again. By pressing ⊞ WINDOWS + number 1,2,3...0 you will start the application from your taskbar counted from left to right.

Tip 6: Check how much Hard drive space installed applications are taking.

Applications and temporary files grow over time and can slow the system and cause some other unpleasant experiences. Go to Settings > System > Storage, click on the Hard drive on which you have installed applications, and see how much each one is taking, you can remove it from this screen also freeing some space.

Tip 7: Remove ads from the START menu.

Windows has so-called suggestions in the START menu, no matter how Microsoft is calling them, let's face it, they are ads and in my opinion, they do not belong in my START menu. To turn them off, go to Settings > Personalization > Start. Toggle the setting called Show suggestions occasionally in Start to the off position.

Tip 8: Shut down background applications.

Some applications are running in the back and are taking system resources and can send telemetry information, if you want to turn them all off go to Settings > Privacy > Background apps. To stop all apps from running in the background, toggle Let apps run in the background to off. You can choose which apps to run in the background individually by going down the list on the same page.

Tip 9: Use Background scrolling.

Did you know that you can scroll on inactive windows? To do this, just hover over the inactive background window and roll your mouse when the content of the window should be scrolling even if it's not one you are working on. If by any chance this is not happening, go to Settings > Devices > Mouse, and toggle Scroll inactive windows when I hover over them to On.

Tip 10: Show file extensions in File Explorer.

By default extensions of files are hidden, so let's say that for example, you are in a folder with pictures, you have plenty of pictures there but you do not know are they JPG or JPEG for example, do not worry there is an easy fix to bring showing extensions back. Start File Explorer, click on view top menu item, click on options, Uncheck the box that says Hide extensions for known file types. Click Apply, and OK.

Tip 11: Use focus assist.

Set it up by going to Settings > System > Focus assist. Choose from three options: Off (get all notifications from your apps and contacts), Priority (see only selected notifications from a priority list that you customize, and send the rest to your action center), and Alarms only (hide all notifications, except for alarms). You can also choose to automatically turn this feature on during certain hours, or when you're playing a game.

Tip 12: Rotate your screen.

If you have multiple screens set up or you have the rotatable screen press and hold CTRL + ALT together, then use a directional arrow to flip the screen. The right and left arrows turn the screen 90 degrees, while the down arrow will flip it upside down. Use the up arrow to bring the screen back to its normal position.

Tip 13: Enable GOD mode.

Have you always felt limited with Windows settings? Don't be, Right-click on the desktop and select New > Folder. Re-name the new folder with this bit of code: GodMode.{ED7BA470-8E54-465E-825C-99712043E01C} To enter the "God Mode" window, double-click the folder.

Tip 14: Use Virtual Desktops.

Click on Task View (the icon next to the search box). This will separate all your open windows and apps into icons. You can then drag any of them over to where it says "New desktop," which creates a new virtual desktop. Once you click out of Task View, you can toggle between virtual desktops by pressing the ⊞ WINDOWS + CTRL + right/left arrows. To remove the virtual desktops, just go back into task view and delete the individual virtual desktops, this will not close out the apps contained within that desktop, but rather just send them to the next lower desktop.

Tip 15: Customize the command prompt.

Yes, you can customize the command prompt, in order to do so, open it and right-click on its title bar, choose properties and go wild. Special badge if you make it look like commodore 64 BASIC.

Tip 16: Dictate, not type.

If you have speech recognition ON, pressing ⊞ WINDOWS + H will bring up a voice recorder, just speak and see how you can easily "write" emails, etc.

Tip 17: Use sandbox.

In Windows you have a sandbox option, which will open another Windows instance inside Windows, what do you need this? Well once the sandbox is closed everything in it is closed and if you catch the virus or other dangerous software, closing the sandbox will destroy it not affecting your actual Windows. Use it for safety testing and enjoy an easy life. Enable Windows Sandbox inside the Control Panel.

Tip 18: Use a hidden game bar.

Press the ⊞ WINDOWS + G, you can pull up the new-and-improved Game Bar. This lets you switch your Windows PC into gaming mode, which pools system resources to the game, turns off notifications, and lets you record and broadcast your gaming, along with added panels for controlling your audio, monitoring FPS, and tracking achievements. And that's it, Our 18 tips and trick to make your Windows 10 life easier, more productive, and overall more enjoyable. I certainly hope you have enjoyed reading this article same as I was writing it. Until next time if I do not see you, good afternoon, good evening, and good night.

A lot of users connect to the internet are using VPN on their Windows 10 computers which means that their regions could be different from the actual region of their Windows 10 computers. Thus, if you are facing some issues in updating your computer in this kind of environment, specifically the Windows Update error 0x800F0922, you need to follow the tips given in this guide to help you resolve the issue. When you encounter this kind of Windows Update error, you might see either of the following error messages on your screen:

“Windows could not search for updates, Code 0x800F0922 Windows Update encountered an unknown error” Or: “Windows failed to install the update with error 0x800F0922”

This issue might be caused by two possible reasons such as:

1. VPN issues
2. Not enough space on the System Reserved partition

To resolve the problem, here are some tips that might help:

Option 1 – Try disabling the VPN

As mentioned, if you are using VPN, this could be the reason why you’re getting the Windows Update error 0x800F0922 so the most obvious thing to do is for you to turn off the VPN and try to run the Windows Update once more. And if you use a VPN software that works using their software, you can just completely exit or log-off from its account. On the other hand, if you are using a built-in Windows 10 VPN, you can simply turn it off or delete all the settings you have created there. Although it’s understandable that you might have to use a VPN connection to connect to the work network, you really have to disable it at least until the Windows Update is no longer stuck in the error 0x800F0922. It would be best if you do this when you are not working.

Option 2 – Try to free up space in the System Reserved partition

The System Reserved partition is a part of the hard disk created when Windows is first installed on it. It is where the Boot Configuration Database, Boot Manager Code, Windows Recovery Environment, and the reserves space for the startup files are stored. And as mentioned early on, the error might be due to some insufficient space in the System Reserved partition so the next thing you can do is to increase the space in this partition. Note that it is a complex process so you need to make sure that you have made backups to all your data on the computer. So if ever something goes out of hand, at least you have copies of your important files in case you aren’t able to boot into the system at all.

A lot of users rely on keyboard shortcuts to carry out tasks on their PCs. One of the most common keyboard shortcuts used is the Ctrl + Shift + Esc which opens the Task Manager. As you can see, the Shift key is not just used to capitalize a text as it can also be used for other functions and plays an essential role in operating a computer. However, if you suddenly find it not working, read on as this post will help you fix the problem. If your Shift key is not working, there are several potential fixes you can check out to fix it. These are the different ways to get rid of the Shift key not working issue on Windows 10:

1. Physically clean the key and keyboard
2. Disable Sticky Keys.
3. Update, Reinstall, or Rollback Keyboard driver.
4. Test the keyboard on another system.
5. Check your connections
6. Run the Hardware troubleshooter
7. Troubleshoot in Clean Boot State.

Option 1 – Clean the keyboard keys physically

Your keyboard might not be working properly due to some dirt or other corrosion. Thus, you need to clean your keyboard, especially the Shift key. First, you need to shut down your computer and then unplug the keyboard if you are using a desktop computer and then prepare it for cleaning. After that, use a small cotton ear cleaning tool to get between the creases and clean them. You can dip it slightly in alcohol to make it more efficient in cleaning dust and dirt. And if you can, you have the option to pull apart the keyboard completely and then wipe away all the corrosion from the inside. Once you’re done, put the keyboard back together and then plug it back into your PC. Now turn your PC on and check if the Shift key is now working.

Option 2 – Try to disable the Sticky keys

Another thing you can try is to disable the Stick keys. How? Refer to these steps:

• Tap the Win + I keys to open the Settings app.
• After that, navigate to the Ease of Access section, and here, select Keyboard.
• Next, make sure that the option for Press one key at a time under the Sticky Keys is toggled off.

Option 3 – Reinstall, update or rollback your keyboard driver

Once you’ve determined that the problem is in the software part of the keyboard, it is now time to try to reinstall, update or roll back your keyboard drivers. To reinstall the driver for your keyboard, refer to these steps:

• From the WinX Menu, open the Device Manager.
• In the Device Manager, you should find your laptop’s keyboard under the “Keyboards” option. Right-click on it and select the “Uninstall” option.

Note: If you’re not quite certain about your laptop’s keyboard, you can uninstall all the keyboards if there’s more than one.

• After that, restart your PC and see if the keyboard driver is installing automatically. If not, open the Device Manager again and right-click on Keyboards, and select the option “Scan for hardware changes” to install it.

Once the keyboard driver is installed again, check if your keyboard is now working properly or not.

Option 4 – Try connecting the keyboard to a different USB port or another computer

The problem might have something to do with the USB port that’s currently in use by your keyboard. It could be that it’s not working so it makes sense to unplug it and attach it to another USB port. You can also clean the USB port on both ends to ensure that they are not affected by corrosion. In addition, you can also try connecting the keyboard to a different computer and see if the Shift key works there or not.

Option 5 – Try to check your connections

You can also try checking if the connection mode you are using for your keyboard is functioning properly. For instance, if you are using a Surface 2-in-device, you can clean the connection pins and see if it resolves the problem.

Option 6 – Run the Hardware and Devices Troubleshooters

• The first thing you need to do is click on Start and then on the gear-like icon to pull up the window for Settings.
• After opening Settings, look for the Update and Security option and select it.
• From there, go to the Troubleshoot option located on the left-hand side of the list.
• Next, select Hardware and Devices from the list and open the Troubleshooter and run it. Once it is doing its job, wait for it to complete the process and then restart the system.
• After the system restarts, check if the problem’s now fixed. If not, refer to the next option given below.

Option 7 – Put your PC in a Clean Boot State

You might also want to put your computer in a Clean Boot State to fix the problem with the Shift key. It could be that there is a third-party program that’s preventing the Shift key from functioning. To isolate this possibility, you need to put your computer in a Clean Boot State.

• Log onto your PC as an administrator.
• Type in MSConfig in the Start Search to open the System Configuration utility.
• From there, go to the General tab and click “Selective startup”.
• Clear the “Load Startup items” check box and make sure that the “Load System Services” and “Use Original boot configuration” options are checked.
• Next, click the Services tab and select the “Hide All Microsoft Services” check box.
• Click Disable all.
• Click on Apply/OK and restart your PC. (This will put your PC into a Clean Boot State. And configure Windows to use the usual startup, just simply undo the changes.)
• Now try to connect the external devices and check if the error is now gone.

The Error Code 0x80070057 is rather typical with Win7. Customers of Win7 maintain reporting that each moment they strive to install this Operating system, it shows this problem error. Often, the total information that comes with this specific error is:

"Error Code 0x80070057: The parameter is wrong"

When this problem happens, you will end up struggling to move private documents from one person to another.

Solution

Error Causes

You could get the error message when you attempt installing Win7,

"An Internal Error has occurred. Incorrect parameters".

If this happens to you, realize that you are dealing with malfunction code 0x80070057. This error occurs mostly when you are trying to build a full backup of your Windows 7 OS.

The primary source of Error 0x80070057 is huge registry values.

Extensive registry values usually occur when you are trying to back up your Windows 7 OS. This means that you need to immediately create a bigger virtual memory space to avert the occurrence of the error.

Error Code 0x80070057 can be a result of incompatibility between the motherboard and some drivers.

Check whether the computer's motherboard and the installed drivers are compatible. If you can't do this effectively on your own, it might be a good idea to enlist the services of a qualified technician.

The Problem Signal 0x80070057 has a close Connection with RAID Installations

RAID installations have a tendency of sparking off the Error Code 0x80070057. If you experience this error while using RAID, first turn off the RAID setup and check whether that resolves the problem.

Further Information and Manual Repair

Error Code 0x80070057 is repairable. Thus, there's absolutely no cause for alarm when you see it with respect to your own Windows 7 Operating System. So what can you do to resolve it? a) Increase Virtual Memory: This is perhaps the most common solution to Error Code 0x80070057. In most cases, simply raising the virtual memory especially on Windows 7 Operating-System completely eliminates the error. Moreover, you don't have to be technically advanced to effect the change. Simply follow these steps:-

• Click the Start Button and visit Control Panel
• Click System Security, and proceed to System.
• Click the Advanced System Settings, subsequently proceed to the Advanced Level Tab.
• Click Change, which can be under the Virtual Memory
• Change the virtual memory value. For instance, you can customize entirely from 2000MB to 6000MB.
• Click Set, then Ok. You are done

As with each additional change you make with respect to your Computer, you will have to conclude by re-booting it. This way you make certain that they'll stay as you've established them and apply the necessary modifications. If the error still persists after attempting the preceding fix, download a registry-cleaning software. The software will clean up your disk and free up memory thus increasing the available virtual memory for your computer. This should solve your persistent Error Code 0x80070057.

A surprisingly large amount of things present at your home can and do interfere with your wi-fi signal making it weak so devices are dropping it, having trouble connecting, or being slow.

Hello and welcome to our latest article where we will take a look at all things that are present in a lot of homes but are very bad for your WI-Fi signal.

Bad router placement

Having a router in a bad position can have some really large effects on WI-Fi signal strength and its availability. Usually, we do not give great attention to where we are placing our router but it has been proved over and over again that being close to certain objects does indeed have a great influence on the wireless signal strength and performance.

So, what are these objects and bad positions where we could place the router and effectively kill his Wi-Fi capabilities?

Fish Tanks

Water will block all radio waves including Wi-FI signals and waves themselves, so having a router next to the aquarium or any large source of water is a bad idea. You should always look at water as something bad for your Wi-Fi and move your router away from it as far as possible.

Bookshelves

Paper is another story and example of the dampening effect on radio waves. Did you know that various patterns of paper are used in silent rooms and recording studios in order to eliminate sound reflection from surfaces? Well besides absorbing sound waves, the paper also absorbs Wi-Fi signals and if you have a large bookshelf with a lot of books packed one beside another you just have a great wall of signal absorbing.

Mirrors

The problem with mirrors is in their coating that goes over the glass in order to turn it into the mirror, that coating is metal and as such, it is absorbing signals in large amounts. If you have an old or high-quality mirror that has a silver coating things are even worse since silver will absorb even more waves than modern cheap ones.

TV

Yup, TV is also on this list and for a similar reason as a mirror, although TV does not have coatings of metal, they have something even worse: a large metal plating on the back. Metal plating is there to produce structural integrity of the TV set and provide it with shielding from electromagnetic waves and as such it will prevent Wi-Fi waves as well. Do not place the router behind your TV.

Things that influence signals in homes

Any kind of metal decoration

Now when we covered mirrors and TV because of the metal they have, we must take a look at the metal itself. Any kind of metal stuff that you might have like baskets, figures, statues, frames, etc will effectively block your signal.

Kitchen appliances and Home utilities

Kitchen appliances like refrigerators, microwaves, ovens, stoves, etc. along with home appliances and utilities like dishwashers, washing machines, dryers, etc are large metal objects enclosed in a metal cage that will block signals from spreading further and it is no secret that most kitchens have weaker Wi-Fi because of this reason.

Home gyms

This is a logical conclusion as to everything explained so far if you have a workout room or small gym at home it is probably filled with weights that are metal and have mirrors inside, all of that will interfere and block signals.

Things blocking your Wi-Fi that you have no easy control over

Walls

Thick walls will dampen signals, thick walls from bricks will dampen even more and concrete walls will kill it almost completely. Any kind of metal reinforcement wiring inside walls will reduce and kill signals as well.

Floors and ceiling

This is somewhat important if you have a floor beneath or under the room where is your router located, but for the same reason how walls are blocking your signal floor and ceiling can do it as well, especially since most of the time they are made of some stronger material like concrete with metal fence inside.

Heating systems

If you have a heating system that is composed of metal radiators with water inside, then in terms of Wi-Fi signal strength you have an aquarium but in a metal box, and as such it will greatly reduce signal strength.

Windows updates have become a regular occurrence in our digital lives. They are frequent and have become quite necessary. Most of the time they bring us quality content like fixed security, resolved bugs, and even new features but from time to time update itself can be not downloaded properly or it can have some issues when installing. Windows Update Error 0x800F0825 is one of these update errors that will be reported seemingly after applying the update. Altho annoying error it is nothing system breaking and can be easily resolved. Hello and welcome everyone, today we will provide you with solutions on how to resolve error 0x800F0825 when trying to complete a Windows update.

Run Windows troubleshooter

Built-in Windows troubleshooter can help a lot in resolving these issues and we will try it as a first solution because of its simplicity and ease of use.

• Click on START
• Click on settings
• Navigate to Update & Security > Troubleshoot > Additional Troubleshooter > Windows Update
• Click on Run the troubleshooter
• Follow onscreen instructions and let the troubleshooter try to solve the issue

Clear contents of SoftwareDistribution & Catroot2 folders

Altho SoftwareDistribution and Catroot2 folders are essential for the update process it can happen that badly downloaded updates or similar corruption can be stored there and thus producing this error.

• Open file explorer and locate these two folders, go inside and delete content inside them
• Try updating again to see if corruption inside folders was the issue.

Update manually

If the previous two solutions have not produced a result and the error is still present then go to the official Microsoft Update Catalog and download the update manually The catalog is here. Search for updates from the Windows Update Catalog In the Search box, type your search terms. You can carry out a full-text search, using a keyword, KB article, MSRC bulletin, driver manufacturer, driver model, driver version, product, and a classification. Select the appropriate version of Windows. Search or click on Advanced Search if you want to refine your search. A list will be displayed. Select the updates that you want to download. Click Add for each selection to add it to the download basket.

• Download the updates. You may be asked to install an Active-X download control to be able to download files from this site
• Double-click on the downloaded updates to install them

Administrators can download updates from the Microsoft Download Center or the Windows Update Catalog to deploy to multiple computers If you are running Windows Server Update Services (WSUS) 3.0, System Center Essentials (SCE), or System Center Configuration Manager (SCCM) you can import updates directly into these applications. Security updates, critical updates, service packs, update rollups, definition updates, and critical drivers can be configured to synchronize with your server automatically. You can still import these updates into your application by using Microsoft Update Catalog; however, depending on how you configure WSUS, SCE, and SCCM, you may not need to import the updates.

Disable system protection

In some rare cases, antivirus or firewall could interfere with both downloads and execution of certain files. If each previous solution failed disable temporarily your security software and try executing the update again.

If you would like your computer to be discoverable on your network and use print and file sharing you will have to change your network profile on your computer from public to private.

Follow the provided guide step by step to change your network profile setting:

Switch to private profile in Windows 10

Locate the Wi-Fi icon in your system tray and click on it. Click on properties on your WI-FI network to open the network menu. Inside the menu in the Network profile section enable the Private option.

Your changes will be automatically saved.

Switch profile to private in Windows 11

Find the WI-FI icon in the system tray and right-click on it, then choose Network and Internet Settings. Network & Internet page with open, find your network name at the top and select properties.

On the WI-FI page, in the Network Profile Type section choose Private. As in Windows 10, your changes will be automatically charged, and you can start using them immediately.

Another way around

If you want to switch back to a public profile follow provided steps but disable the private option.

Windows 11 has come a long way from its infant stage. Today it is incredibly good and stable operating system that also looks good and modern. Unfortunately, fancy animations and good graphics come with a price, in this case, slower performance on some little older and weaker computers.

Animations itself which include also fading effects can sometimes feel slugging and laggy and have a general overall feeling of delay. For a more old-school instant experience, you can turn off animations.

In order to turn animations inside Windows 11 follow this simple guide:

First thing is to open Settings by pressing Windows + i key combination or you could open Start and in the search box type in Settings and then click on its icon.

Once inside settings on the left side find Accessibility and click on it to select it. Once it is selected on the right side choose Visual effects. Inside the visual effects section click on the switch next to Animation effects to OFF. You can also turn off transparency effects in this section if you wish if you have an older GPU in order to speed it up a little.

That is all you need to do, settings will be automatically saved and all animations will be turned off for a quicker and more responsive feeling when working inside W11

USB Kill, a USB device is able to fry and damage your computer, mobile phone, router, etc. This device is quite dangerous and can kill electronics the moment it is inserted into an available port. By now people should know that they should not put unknown USB sticks into their devices because of potential virus and malware threats but this raises using unknown sticks to a whole new level.

Kill kits are not really new to the market, they have existed before but lately, technology really progressed and the latest USB sticks are really good, their success rate is around 95% which is pretty high and should not be taken lightly.

The second thing that you really should not play with strange USB sticks is that they dropped in price really hard, although top Kill kits will still go as high as around 300 USD, there are really cheap ones lurking in Ali Express that are just 6 USD!!! that makes them affordable devices for the mass market.

The device is made to take energy and current from the port it is plugged in, multiply it and release its charge back into the device, successfully frying some components immediately. Some more professional Kill sticks can even fry devices even when the device itself is not powered and can be even started remotely.

The point of this article is to make you aware that you should not in any kind of circumstances use and plug-in USB sticks into your devices that you do not know where they come from, especially from the mail!!