Fix Out of Memory error while copying files

If your USB keeps disconnecting and reconnecting after you connect your USB device on its own randomly, then the problem might have something to do with a hardware or driver issue. The first thing you have to do in such a case is to make sure that the device is working on another computer. This will help you isolate the problem and if it turns out that it works, then the problem lies in your computer and not your USB device. To fix this connection problem between your USB device and Windows 10 computer, you can use the options given below as a reference.

Option 1 – Update or reinstall the Universal Serial Bus Controller driver

Since it could be a driver issue, you can try to update or reinstall the Universal Serial Bus Controller drivers using the Device Manager. Refer to the following steps:

• First, click the Start button and type “device manager”.
• Then click on the “Device Manager” from the search results to open it.
• From there, look for the “Universal Serial Bus controllers” option and then right-click on each one of the USB drivers and select the Update Driver from the menu.

Note: If it is a regular USB drive, then it will be listed as a USB Mass Storage Device but if you have a USB 3.0 device, then look for a USB 3.0 Extensible Host Controller.

• Restart your PC and then click the “Search automatically for updated driver software” option.

Note: If updating the USB Controller drivers didn’t work, you can try to reinstall them instead.

Option 2 – Try to change the USB port

You might want to change the USB port since modern computers have a variety of USB ports. So if your USB drive supports USB 3.0 or 3.1, make sure that you plug it inside a USB 3.0 or 3.1 ports. If you’re not sure which port, just keep in mind that the USB 3 port is usually blue or you can also use your computer’s documentation or manual as a reference to locate it.

Option 3 – Try to turn off the Power Saving option

You could also try to turn off the Power Saving option to resolve the problem. All you have to do is switch to Power Management after you select the Properties of the USB device and from there, uncheck the “Allow the computer to turn off the device to save power” option. On the other hand, if you are using a laptop and did not use the USB device for a long time, then it could be powered off. This will ensure that the system does not turn off the USB device.

Option 4 – Try to reinstall the latest Universal Serial Bus controller drivers in Compatibility Mode

If you were unable to install the Universal Serial Bus controller drivers you’ve downloaded, you can try installing them again but this time using Compatibility mode. Follow the steps below to do so:

• You need to download the driver and place it on your desktop.
• After that, right-click on it and select Properties.
• Next, switch to the Compatibility tab where you should see two options:
  • Compatibility troubleshooter, and let Windows figure out what works best for you. If it fails, follow the next.
  • Manually choose the version of Windows it was correctly working.
• Now right-click on the file and select the “Run as administrator” option to install. After that, you should now be able to change your screen aspect ratio to what you were using early on.

Note: If you have other programs that won’t work on the existing version of Windows, then make sure to run the program in a Compatibility mode.

Option 5 – 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.

VSSControl: 2147467259 Backup jobs failed. Cannot create a shadow copy of the volumes containing the writer’s data. VSS asynchronous operation is not completed. Code: [0x8004231f]

This message pops up when you are creating a snapshot system restore, usually, the issue is tied with insufficient space or service stopping. We will go into detail about how to fix both so you can finish the operation without any issue.

1. Check Volume Shadow Copy Services

   Easier and faster fix than the next one. Launch Services from the Start Menu, look for Volume Shadow Copy, double-click on it, and check the Service status. If it is stopped, click on the Start button. If it’s running, restart it by clicking Stop > Start.

2. Increase Shadow Storage Space

   If the first fix didn’t resolve the issue then you need to increase Shadow Storage Space. Launch Command Prompt as an administrator. Now, type the following command to check your Shadow Storage Space. vssadmin list shadowstorage Now, type the following command to allocate more storage (you can change 10GB with the amount of space you want to allocate) vssadmin resize shadowstorage /For=C: /On=C: /MaxSize=10GB

Error Code 0x80070020 – What is it?

One of the problems encountered by Windows users when upgrading to Windows 10 from Windows 7 or Windows 8/8.1 is the Error Code 0x80070020. This error code normally occurs when users try to download updates from the Windows Update Website or simply by upgrading to Windows 10. Error Code 0x80070020 also occurs when the device already has a Windows 10 installed.

Once this error is encountered, it will cause malfunction of update installs and display the following message:

An error (-5006 : 0x80070020) has occurred while running the setup. Or The process cannot access the file because it is being used by another process”

Solution

Error Causes

In an attempt to fix Error Code 0x80070020, it is important to pinpoint what the cause is. The most probable cause of this error is due to interference. This error code most likely occurs when there is another automatic update running, for instance, an Antivirus scanning in real-time. If you’re scheduled to have an automatic update during real-time scanning, the Windows 10 update might malfunction.

Further Information and Manual Repair

In trying to fix Error Code 0x80070020, you can perform manual repair methods to resolve the issue effectively and efficiently. Most Windows users can easily employ these manual repair methods, even those who do not have technical abilities. However, there are certain instances where a Windows professional’s help is needed. If you don’t want to face any risk in resolving the issue, it would be best to consult a professional Windows technician or you can also make use of a powerful automated tool.

NOTE: It is best to attend immediately to errors encountered since unresolved errors can result in slowing down your computer’s performance. This might also cause other error messages to arise such as Error Code 0x80070057.

Method One: Restart Your Device

Since Error Code 0x80070020 is most likely encountered due to interference during your update, the easiest method you can do is to close all opened programs and restart your device. After restarting, try to start the update process again.

Method Two: Disable Antivirus Temporarily

Another quick and safe way to fix Error Code 0x80070020 is to disable your antivirus. You must take note though that in doing so, your computer will be susceptible to virus attacks. If you want to proceed with this method, follow these steps:

1. Locate all programs in process in the notifications area, found in the lower right-hand section of your screen. If in case the antivirus icon is not visible on the taskbar, you may have to click an arrow pointing up to show what programs are currently running.
2. Right-click on the antivirus icon then select the disable option.

Method Three: Run the Update Troubleshooter for Windows

The Windows Update Troubleshooter may resolve many of the errors encountered by Windows users when installing updates from Windows Update. To execute the troubleshooter, follow the steps below:

1. Access a menu by holding the Windows key and X. Wait for the menu to appear on the bottom left corner of the screen.
2. Open the Control Panel.
3. Change the appearance of files by selecting large or small icons in the View by option located on the upper right section of your screen.
4. Once you change the appearance of the files, choose the troubleshooting
5. Run the Windows Update Troubleshooter.
6. Restart your device then check if this resolves the problem.

Method Four: Execute A Clean Boot

Executing a clean boot means starting Windows using only a few resources, including startup programs and drivers. This safeguards minimizing conflicts and prevent software clash when an update is received. In performing a clean boot, you will be able to pinpoint what caused the manifestation of error code 0x80070020. Check Microsoft’s Support website to know how to execute a clean boot.

Method Five: Reset Windows Update Components

Performing this method is a bit risky and should be your last option if all methods were unsuccessful. This process will alter your device’s registry so you must ensure to perform accurately the steps. A single mistake can lead to modifying your registry erroneously, which might result in the occurrence of other error messages. Carefully follow the steps found on Microsoft’s Support website to successfully reset Windows Update components.

Resetting Windows Update components can also be done by implementing the following steps:

1. Open the Command Prompt by pressing Windows Key + X. Select Command Prompt (Admin) from the menu.
2. Stop the BITS, MSI Installer, Cryptographic, and the Windows Update Services.
3. Rename both the SoftwareDistribution and Catroot2 folders to <name of folder> old.
4. Start now the BITS, MSI Installer, Cryptographic, and the Windows Update Services.
5. Exit the Command Prompt then restart your device. After restarting, try installing the updates again.

Method Six: Disable Third-Party Antivirus

A third-party antivirus such as BitDefender may recognize the Windows Update as a threat since the new update of Windows 10 is probably not yet registered with this third-party antivirus vendor. To solve this, you must disable temporarily the antivirus before performing the update. Once the third-party antivirus is disabled, you can now proceed with the updating process. Update as well your third-party antivirus.

Method Seven: Use the DISM Tool for Windows 10

The Deployment Image Servicing and Management (DISM) is a command-line utility that is installed by default in Windows 10 system. This program is used to fix images in Windows. In the case of Error Code 0x80070020, the DISM can repair the recovery image in Windows 10 and can perform as a virtual hard disk as well.

1. Scan and check files for errors.
2. Open the Command Prompt by pressing Windows Key + X. Select Command Prompt (Admin) from the menu.
3. Type sfc /scannow
4. You can also use the following commands to check for corrupted files:

/CheckHealth – to check for corrupted files or components

/ScanHealth – to check for corrupted Windows image. This may take up to 10 minutes to finish

/RestoreHealth – to check for corrupted Windows image and do an automatic repair. This may take up to 20 to 30 minutes to finish

NOTE: In an instance where you cannot locate the good files in your computer, the system image files may be corrupted. If this happens, you need to have a copy of install.wim from a computer with good Windows 10 OS or the Windows 10 ISO file. Make sure that the source of the good files has the same language, version, and edition of your OS.

Cleaning corrupted files using DISM utility:

Enter the following commands one by one to perform the /RestoreHealth switch using the source path location of good files you copied:

1. DISM /Online /Cleanup-Image /RestoreHealth /Source:repairSource install.wim
2. DISM /Online /Cleanup-Image /RestoreHealth /Source:repairSource install.wim /LimitAccess
3. DISM /Online /Cleanup-Image /RestoreHealth /Source:repairSource install.wim:1 /LimitAccess

For example purposes, the “repairSource” is the source of the good files.

A command is not recognized Error, what it is? If you are constantly using programs like CMD or DISM directly from the Run prompt, you might have wondered how they launched instantly and how is it that the Windows operating system is able to find them right away. For instance, when you create a shortcut of a program, the shortcut knows where exactly the program is located and launches it quickly. The Windows operating system keeps a list of paths where the most common system programs are located so when you use the Run prompt, it opens easily. The list kept by Windows is called the Windows Environment Variables. If something goes wrong with this list, the programs won’t work. So in this guide, you will be guided on how you can troubleshoot the problem where any command you use is not recognized as an internal or external command, operable program, or batch file. Before you start troubleshooting the problem, you need to make sure that the program you are trying to run really exists. In fact, this can also happen to the Run program which is pulled up using the Win + R shortcut. To check, go to C:\Windows\System32 and there, check if the program exists or not or you can also try searching for the EXE in the System 32 folder. After making sure that the program exists, refer to the instructions given below.

Modify the Windows Environment Variables:

• Step 1: Tap the Win + X keys and then select System. After that, it will open the section where you can see all the properties on your computer.
• Step 2: Next, select the Advanced system setting located on the left pane and click on the Environment Variables.
• Step 3: After that, locate Path under the System Variables and select EDIT.
• Step 4: Before you edit, you need to copy the entire string and paste it into the Notepad app so that in case something went wrong, you can paste it back.
• Step 5: Next, look for the directory path, “C:\Windows\System32”. If you can’t find it, try adding a semi-colon at the end.
• Step 6: Afterwards, click OK to save the changes made and then exit.
• Step 7: Now restart your computer as all the paths are picked up when your computer restarts.

Note: Now all you have to do is to try executing the programs once again – the ones where you got the error, “ is not recognized as an internal or external command, operable program or batch file” every time you open them and then see if you can now open these programs or not.

Windows 7 was an operating system that had one thing which no other Windows had, even today. Official Microsoft desktop widgets. With an attractive design, users loved to exploit the adequacy and neatness of these gadgets. However, Microsoft had to discontinue these gadgets as they posed a serious security threat to the Operating System. It was believed that a potential attacker could even use a gadget to take complete control of your PC. With Windows 10, things have changed big time. You have all the fantastic apps and live tiles at your disposal providing a more native experience. Despite all this, if you still have a fondness for fancy gadgets, we have just the right tool for you to get started with similar “Widgets” on Windows 10. Win10 Widgets is a tool that places the most important information right in front of you, on your desktop.

Win10 Widgets

Win10 Widgets is a desktop app package provided by Rainmeter which is an effective system customization engine for Windows. It brings some informative widgets to Windows 10 which look almost native with their intuitive and sleek design. You can pin them on your desktop to keep an eye on various system figures like CPU usage, data storage, battery usage, detailed computer performance, etc.

Native looking Widgets for Windows 10

These widgets are designed in such a way that it looks totally indigenous to the Windows 10 UI. With a similar design language, visual style, accent color, and even font settings, these widgets almost look like an inseparable system component. You can choose between different size variants to pin on your desktop and arrange them in an orderly fashion to make the most of it.

Highly customizable desktop gadgets

Apart from the default size variants, you can configure several other parameters pertaining to the look and appearance of any widget. As Rainmeter is an open-source program, you are provided with the .ini configuration files which you can customize as per your wish. You can make adjustments to the widget coordinates, position and transparency as well. You can even create your own skins (.rmskin package) using the built-in Skin Packager and publish them for general usage through Rainmeter.

Illustro Skins

Over and above the cool widgets, Rainmeter also contains Illustro, a simple collection of skins that shows the range of Rainmeter’s capabilities. You can load the skins on your desktop for a brief look at your system internals. You can also start editing these skins to make them yours by taking advantage of the Rainmeter manual and forum link provided on the Welcome screen. Win10 Widgets is a great tool if you like widgets or gadgets on your Desktop. It blends into the background and puts the important piece of information right on your desktop without you having to look somewhere else. If you already have the Rainmeter application, you can download the Win10 Widgets .rmskin file from here, else you can download the combined bundle for both Rainmeter and Win10 Widgets from here.

The latest Windows 11 update has brought with it not so popular widget from Windows 10, the weather widget that will reside into the taskbar and constantly show stuff like temperature, weather conditions, etc. The weather widget is not a bad thing but most users found it a little annoying and turned it off in Windows 10. If you wonder how can you do the same but this time inside Windows 11 please keep reading. The first step is to right-click  anywhere on the taskbar (in empty space) and choose Taskbar settings Once the taskbar settings are opened, find Widgets and click on the switch on the far right to turn it off, immediately no more information will be shown on the taskbar and it will be free again. And that is all there is to it.

HP Printer Spooler Not Running - What is it?

If you have the HP printer, then you may come across this error. HP Printer Spooler not running errors does not mean there is anything wrong with your printer. It indicates printer driver issues.

Solution

Error Causes

There can be multiple causes behind the HP printer Spooler not running error code such as:

• The poor or unsuccessful printer driver installation
• Invalid registry entries

Though this is not a critical error code as it does not pose serious damage threats to your PC, however, it is advisable to resolve it as it can cause you a great deal of inconvenience especially if you want to take out printouts every now and then.

Further Information and Manual Repair

Here are some ways you can try to resolve HP Printer Spooler Not Running Error on your system: 1. Reinstall the HP Printer driver on Your System

• Simply go to the control panel and then click on the Device Manager option
• Once you click it you will see details pane with a list of devices. Now simply click on the printer, to reinstall the driver software.
• Double click on it to open the properties dialog box
• After that click on the driver tab and then click update driver

Once you update the driver, try using the Printer to see if it works. Sometimes you may come across a pop-up displaying the following message: ‘Driver installed correctly, Device is ready to use however, you may not see the printer under the printer’s pane. This triggers registry issues. 2. To resolve registry issues, install Restoro on your system. This is a highly functional registry cleaner integrated with a powerful antivirus. It helps resolve registry issues, malware, and guarantees system optimization. This feature-filled tool is the answer to all your PC-related issues. Restoro is a next-generation PC repair software that extends outstanding usability and helps PC users resolve errors efficiently. Its simple navigation and user-friendly interface make it so easy to use that even novice users can also work around it and repair issues without any hassle or difficulty. It’s a smart and intuitive in-built registry cleaner that wipes out all the unnecessary and obsolete files on your hard disk. This includes junk files, internet history, invalid registry keys, and files from the uninstalled old program versions. Sometimes the files from the uninstalled programs hamper your ability to update new program versions thus leading to unsuccessful driver installation. Nonetheless, all such files are removed in seconds with this helper and you are then ready to reinstall the driver. This registry cleaner cleans the clutter from your hard disk and optimizes your system's speed, lowering your PC boot time significantly. Total System Care can be used on all Windows versions To fix the HP printer spooler not running error on your computer, simply click here to install Restoro. Run it to scan for the error and fix it in seconds. Once the issue is resolved, update the printer driver. You’ll see the driver will be updated successfully and the HP printer will also appear in the printer’s panel. By installing Restoro on your system, you can also resolve several other issues like privacy errors triggered by malware and virus infections. With this tool, you will not have to download and run a separate anti-virus on your system.

Hello and welcome to our Increasing Virtual Memory tutorial. Before trying to raise the quantity of virtual memory in your pc system, it's important to get a comprehension of its goal and use. This leads to the constant use of high-performing tasks in addition to keeping multitasking capability. The downside to this process is the fact that relatively, the HDD accesses information slower than a RAM module. Taking into consideration its use in a computer program and how virtual memory works, there isn't any amount of virtual memory allocation. The quantity of virtual memory to be defined for a unique computer program would be determined by the kinds of programs that are started and the quantity of multitasking done. The Microsoft Windows operating system yet does supply a recommended baseline memory based on the number of RAM installed and storage space of the HDD. Virtual memory allocation really indicates the upsurge in how big the paging file is. This file provides the pc program with all the essential instructions on the best way to act once all the installed RAM has been allotted to the running applications. In both Microsoft Windows XP (all variants) and Windows Vista environments, the method to control the paging file size is basically the same. To increase the quantity of virtual memory:

• Click on the Start menu and choose the "Control Panel" alternative. When the Control Panel window is started, choose the "Operation and Maintenance" class.
• Click on the "System" choice to create the Device Properties Window.
• Click the "Advanced" tab and choose the "Settings" button under Operation. In the Operation alternative window, select the "Change" button under the Virtual Memory class.
• Choose the hard disk where the Windows operating system is now installed. That can be the same place where in fact the paging file will be saved.
• Test on the checkbox for the "Custom Size" to enable you to determine the number of virtual memory you need to use for your device.
• Click the "OK" button thrice to shut all of the windows. Click the Start button and restart your machine to enable the upsurge in the number of virtual memory to be finished.

In establishing the number of virtual memory, you'll have to place a maximum value along with an initial. It is suggested that both values be equivalent in order to achieve the finest performance on your pc system.

The holiday season is almost upon us and buying gifts for loved ones can sometimes present some headaches, especially if that loved one is a Gamer or PC enthusiast. We have all been there and how almost every household today has a console or PC struggles are infecting more and more people. But do not despair, we have made a nice list of potential gifts for you. The list contains some nice essential and good things but we gave our best not to break the bank so you will not find any large screens or 300$ keyboards here. Of course, you can always get expensive gifts and if you have money for it do it, it is just we want to have affordable stuff here.

A Steam gift card

For gamers, a good game is a great gift but most of the time when we are buying a game we can miss what the person wants. That is why a Steam gift card is a great gift for gamers. He can use it and buy whatever he or she wants for its value.

Xbox Game pass

This is another for those Gamers type. Xbox game pass is a great gift even if you do not own Xbox since all games will work on PC as well. Xbox Game Pass Ultimate includes the PC version, which will unlock somewhere between 300 and 350 games automatically. It’s a subscription service, so your PC gamer will have to keep up with it. The monthly price is worth it, though.

Pack of cable ties

Almost every PC user has tons of cables lying around, and most of the time they are not really tidy. Cable ties come to the rescue!!! Let us be honest, no one likes cables that are scattered all over the place, even the computer users so if they do not have this essential piece of equipment, we are sure they will like it.

Compressed air duster

Dust is enemy no.1 for computer users, it gets into the keyboard, into small spaces, etc. It is very difficult to get it out so an air duster for compressed air is a great cleaning gift for any kind of computer enthusiast. You can get it with a can of compressed air as well so everything is ready for cleaning.

New Headset

A headset is always a great gift. Over time earbuds can deteriorate and get damaged simply just by using them and when enough time passes even cables can start losing contact and overall sound quality may drop. Usually, computer users change headsets like keyboards so if your loved one has some old headsets showing their age, a new one is a perfect present.

New SSD drive

More hard disk space is always a welcome sight for any PC user and new SSD drives fueled with new technology are faster than ones of the same size in past years making them a perfect gift.

Large mouse pad

A good mouse pad can mean a lot to a gamer. Over time mouse pad deteriorates simply with its use so a new and fancy large pad is a great gift for any user. If you want a great gift, make it with RGB light.

Booting the Windows computer system includes loading it from the various boot devices such as drivers, network as well as USB drives when the computer is turned on. The instant the startup sequence is done loading the operating system the system hardware will be ready to perform some complex operations – in this process, the Boot Log in Windows 10 is a record that maintains the list of success or failure of many pieces of Windows 10 system during the booting process. In other words, the Boot Log is the one that keeps a record of all that has happened while loading from the computer storage system to the memory during the boot process. It is available for several devices like network, hardware devices, and the operating system which assist in detecting issues during the boot process and other issues with regards to troubleshooting. Through Boot Log, you’ll know which drivers were unloaded and loaded from the start of the system during the boot process. You have the option to either disable or enable this feature on your Windows 10 PC. Named as “ntbtlog.txt”, the log file lists all the successfully loaded processes and the unsuccessful ones during the boot process. It is saved to the drive C:Windowsntbtlog.txt. As mentioned, you can enable or disable this feature in two ways – the first one is by using the System Configuration or MSConfig while the second one is using the Command Prompt. In this post, we’ll show you how you can enable or disable Boot Log in Windows 10 either way.

Option 1 – Enable or Disable Boot Log using System Configuration

Enable Boot Log:

• Tap the Win + R keys to open the Run dialog box.
• Then type in “msconfig” and click OK to open System Configuration.
• After that, go to the boot tab and check the checkbox labeled “Boot Log” under the Boot options so that you can enable the Boot Log feature.
• Then click on OK to save the changes made.
• Next, click on the Restart button in the prompt window to get started with the Boot Log process.
• After restarting your PC, go to C:Windowsntbtlog.txt to open the boot log.

Note: As pointed out earlier, the log file contains a list of all the successfully loaded drivers and also the list of drivers that failed to load during the boot process and every time you restart the system, the boot log file will keep on updating and will eventually increase the list of entries. For you to locate the drivers and make your troubleshooting a lot easier, I advised disabling the boot log after troubleshooting. To disable the boot log using System Configuration, refer to the steps below. Disable Boot Log:

• Tap the Win + R keys to open the Run dialog box.
• Then type in “msconfig” and click OK to open System Configuration.
• After that, go to the boot tab and unmark or uncheck the checkbox labeled “Boot Log” under the Boot options so that you can disable the Boot Log feature.
• Then click on OK to save the changes made.

Option 2 – Enable or Disable Boot Log using Command Prompt

Enable Boot Log:

• Go to the Start Menu and then type in “command prompt” in the search bar.
• After that, right-click on the Command Prompt option and select the “Run as administrator” option.
• After opening Command Prompt, type in “bcdedit” and tap Enter.

Note: You have to find the Identifier of the current operating system first to enable the Boot log. You can find it under the Windows Boot Loader section in the “Description” field and in this case, it’s Windows 10. You can also find the operating system identifier under the Windows Boot Loader section next to the field name identifier.

• To check if the boot log entry is disabled or enabled, go check the “Bootlog” field under the Windows Boot Loader. And if it turns out that the “bootlog” entry is enabled, the entry will be “Yes”. Otherwise, the entry will be “No”.
• Next, type in the following command with the operating system identifier to enable the boot log.

bcdedit /set {identifier} bootlog Yes

Note: In the command given above, make sure that you replace the given system identifier with your computer’s system identifier. For instance: In this example, the identifier was replaced with the actual operating system identifier as current.

bcdedit /set {current} bootlog Yes

• Afterward, restart the system to start the Boot log process.
• After the restart, go to C:Windowsntbtlog.txt to open the boot log.

Note: Every time you restart your computer, the boot log file will keep on updating which will increase the size of the log eventually. So if you want seamless and easier troubleshooting, it is advised to disable the Boot log after you troubleshoot. To disable it using the Command Prompt, here’s what you have to do. Disable Boot Log:

• Go to the Start Menu and then type in “command prompt” in the search bar.
• After that, right-click on the Command Prompt option and select the “Run as administrator” option.
• Once the Command Prompt is opened, type in the following command and then tap Enter to disable the boot log feature.

bcdedit/ set {identifier} bootlog No

Note: In the command given above, you need to replace the given system identifier with your computer’s system identifier. For instance: In this example, the {identifier} was replaced with the actual operating system identifier as {current}.

bcdedit /set {current} bootlog No

• Now close the Command Prompt.