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Software review series: Wolfram Mathematica

For three decades, Wolfram Mathematica has defined the state of the art in technical computing and provided the principal computation environment for millions of innovators, educators, students, and others around the world.

Widely admired for both its technical prowess and elegant ease of use, Mathematica provides a single integrated, continually expanding system that covers the breadth and depth of technical computing—and seamlessly available in the cloud through any web browser, as well as natively on all modern desktop systems.
With energetic development and consistent vision for three decades, Mathematica stands alone in a huge range of dimensions, unique in its support for today's technical computing environments and workflows.

A Vast System, All Integrated

Mathematica has nearly 5,000 built-in functions covering all areas of technical computing—all carefully integrated so they work perfectly together, and all included in the fully integrated Mathematica system.

Not Just Numbers, Not Just Mathematica But Everything

Building on three decades of development, Mathematica excels across all areas of technical computing—including neural networks, machine learning, image processing, geometry, data science, visualizations, and much more.

Unimaginable Algorithm Power

Mathematica builds in unprecedentedly powerful algorithms across all areas—many of them created at Wolfram using unique development methodologies and the unique capabilities of the Wolfram Language.

Higher Level Than Ever Before

Superfunctions, meta-algorithms... Mathematica provides a progressively higher-level environment in which as much as possible is automated—so you can work as efficiently as possible.

Everything Is Industrial Strength

Mathematica is built to provide industrial-strength capabilities—with robust, efficient algorithms across all areas, capable of handling large-scale problems, with parallelism, GPU computing, and more.

Powerful Ease of Use

Mathematica draws on its algorithmic power—as well as the careful design of the Wolfram Language—to create a system that's uniquely easy to use, with predictive suggestions, natural language input, and more.

Documents As Well As Code

Mathematica uses the Wolfram Notebook Interface, which allows you to organize everything you do in rich documents that include text, runnable code, dynamic graphics, user interfaces, and more.

The Code Makes Sense

With its intuitive English-like function names and coherent design, the Wolfram Language is uniquely easy to read, write, and learn.

Make Your Results Look Their Best

With sophisticated computational aesthetics and award-winning design, Mathematica presents your results beautifully—instantly creating top-of-the-line interactive visualizations and publication-quality documents.

150,000+ Examples

Get started with almost any project with help from 150,000+ examples in the Documentation Center, over 10,000 open-code Demonstrations in the Wolfram Demonstrations Project—and a host of other resources.

Instant Real-World Data

Mathematica has access to the vast Wolfram Knowledgebase, which includes up-to-the-minute real-world data across thousands of domains.

Seamless Cloud Integration

Mathematica is now seamlessly integrated with the cloud—allowing sharing, cloud computing, and more in a unique and powerful hybrid cloud/desktop environment

Connected to Everything

Mathematica is built to be connected to everything: file formats (180+), other languages, Wolfram Data Drop, APIs, databases, programs, the Internet of Things, devices—and even distributed instances of itself.

If you would like to read more helpful articles and tips about various software and hardware visit errortools.com daily.

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How to Fix Windows Activation Error Code 0xc004f050

Error Code 0xc004f050 – What is it?

Error code 0xc004f050 refers to a problem with activating the Windows key. The problem appears when you try to activate a copy of Windows by using Windows Activation wizard. This happens when the system becomes unstable and critical system files start missing. Though Windows 10 is a free upgrade for Windows 7/Windows 8/Windows 8.1 users, the activation error is still an issue. If you already had Windows 7/Windows 8/Windows 8.1 activated and did an upgrade successfully, then there should be no problem. This Problem Occurs only when you do a clean install.

Symptoms

When you try to activate a copy of Windows Vista or Windows 7 by using the Windows Activation wizard, you receive an error similar to the one below:
An error has occurred Code: 0xC004F050 Description: The Software Licensing Service reported that the product key is invalid

Solution

Restoro box imageError Causes

  • This causes due to an invalid product key.
  • This problem may occur if the license validity interval has expired, or if the license is not signed correctly.
  • Error Code 0xc004f050 occurs when the system becomes unstable and critical system files start missing.
  • Improper way of installing, deletion of some very important system files, misconfigured system files, etc. may also cause this error.
  • When you do a clean install, it wipes everything from the Primary Drive and after the install, windows can't find the Hardware ID which is used to verify your license.
  • For Windows 7, Windows Server 2008, and Windows Vista-based computers, this error may occur if you have entered the key for a beta version of the operating system while using the released version of the operating system.

Further Information and Manual Repair

This error is not something that can be fixed in seconds but will require some time and technical knowledge.

Method 1:

Re-insert the product key by using the Change Product Key tool:
  1. Click Start, click Computer, and then click System properties on the toolbar.
  2. In the Windows activation section, click Change product key.
  3. If you are prompted for an administrator password, type the password or click Continue.
  4. In the Product key box, type the product key, and then click Next.
  5. Follow the steps in the Windows Activation Wizard to complete the activation process.

Method 2:

Activate Windows by using the automated telephone system:
  1. Click Start, and then click Computer.
  2. Click System properties on the toolbar, and then click Click here to activate Windows now in the Windows activation
  3. If you are prompted for an administrative password, type it and click Continue.
  4. Click Show me other ways to Activate.
  5. Click Use the automated phone system and follow the instructions.

Method 3:

  1. Clean install Windows 7/Windows 8/Windows 8.1 using the installation disk and activate your copy.
  2. Now, download all the updates to see the Windows 10 Upgrade notification or download Windows Media Creation Tool and use the option Upgrade this PC to get Windows 10 right away.
  3. Once the upgrade is done, check the Activation Status. It will be fully activated as it should be. The Error code 0xc004f050 should not appear anymore.
If you want to get rid of the old Windows installation folder, then use the Windows Media Creation Tool to create a Flash Drive. Clean Install Windows 10. Now, every time when it asks for a product key, skip it. After installation is complete, Windows will automatically identify and activate your Copy. NOTE: Clean Install will make Sure you cannot roll back to your previous Windows 7 or Windows 8. So do it only if you are confident of using Windows 10 from here on. To verify the Windows activation status, follow these steps:
  • Click the Start button, and then click Computer.
  • Click System properties on the toolbar, and then view the activation status in the Windows activation section.
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Printer not activated, error code 30
If your printer has been working just fine and you suddenly get an error message saying, Printer not activated, error code 30”, then something is definitely wrong and it’s not good especially if you have lots of things to do. Worry not, as this post will help you resolve the printer issue. Simply follow each one of the given options below carefully.

Option 1 – Try running the Printer Troubleshooter

The first thing you can to resolve the printer issue is running the Printer Troubleshooter. This built-in troubleshooter can detect and automatically fix the problem for you. To use it, follow these steps:
  • Tap the Win + R keys to open the Run dialog box.
  • Next, type “msdt.exe /id PrinterDiagnostic” in the field and click OK or hit Enter to open the Printer Troubleshooter.
  • Then click the Next button and follow the next on-screen instructions to fix the issue with the printer.

Option 2 – Check if the concerned printer is set as the default one

It could be that the printer you are trying to use is not set as the default printer. This is mostly the case so to fix the issue, you need to set the concerned printer as default. To do that, follow the steps below.
  • Tap the Win + I keys to open the Settings app.
  • After opening Settings, select Devices from the menu and then click the Printers and scanners option.
  • From there, look for the printer you are using among the list of options. After you find it, click on it and select the Manage option.
  • Now click on the “Set as Default” option to set the printer as default.

Option 3 – Try updating the driver for USB Composite Device

The problem with your printer might also be caused by the USB Composite Device. It could be that the USB Composite Device is acting up. Thus, you need to remove and reinstall it. How? Follow the steps below.
  • 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 USB Composite Device option and right-click on it, and select the Update Driver from the options.
  • Restart your PC and then click the “Search automatically for updated driver software” option.
  • Now uninstall and remove the printer driver software and reinstall it then refresh.

Option 4 – Try updating all the drivers for your Printer

  • Tap the Win + R keys to launch Run.
  • Type in devmgmt.msc into the box and tap Enter or click OK to open the Device Manager.
  • After that, a list of device drivers will be displayed. Look for Print queues from the list of drivers displayed and click on it to see all the Printer drivers.
  • Next, right-click on each one of the drivers and select “Update driver” to update the driver. Do it for all the Printer drivers
  • After that, select the “Search automatically for updated driver software” option and then follow the instructions to complete the process.
  • Restart your PC and try printing a document again and see if the “Printer not activated, error code -30” no longer pops up.
Note: You also have the option to go directly to the website of your printer manufacturer and check if there’s a new update – if there is, download it.
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Chrome does not save passwords
Recently, a number of users reported that their Google Chrome browser does not remember any accounts, login sessions, as well as passwords. So if you are one of the users who experience the same problem, then you’ve come to the right place as this post will guide you on what you can do your Chrome browser does not save passwords, remember accounts and login sessions in Windows 10. This issue in Chrome could be caused by a lot of factors. It is possible that there is a setting in Chrome that prevents the browser from saving any data. It is also possible that the Google Chrome profile or the Cache folder for Chrome has become corrupted. Moreover, a third-party antivirus program could also be blocking the browser’s functionality in saving data. Whatever the cause is here are some suggestions you could follow that will help you fix the problem but before you do that, you can try to update your Chrome browser to its latest version first. If it didn’t work, then proceed to the given options below.

Option 1 – Try to clear browser cache

  • Open your Google Chrome browser.
  • After that, tap the Ctrl + H keys. Doing so will open a new panel that allows you to delete the browsing history and other data in your browser.
  • Now select every checkbox that you see and click on the Clear data button.
  • Then restart your Chrome browser and check if you can now complete the download again.

Option 2 – Try to delete the cache files for Google Chrome

The next thing you can do is to delete Chrome’s cache files or its store information which helps it in loading cached webpages faster when you pull them up. However, if it turns out that the cache files are corrupted, then it’s no wonder why Chrome is unable to save passwords. To fix this, you can try to delete the cache files for Google Chrome webpages and you can do it by following these steps:
  • First, open Google Chrome.
  • Next, open this address in Chrome – chrome://settings/clearBrowserData
  • After that, go to the Advanced tab and select all time as well as the first four options.
  • Now click on the Clear data option and then restart the Chrome browser once the cache has been cleared.

Option 3 – Try allowing Google Chrome to keep local data

If the option to keep local data is disabled in Google Chrome’s settings, it won’t be able to store local data in the browser. Thus, you need to enable it by following these steps:
  • Open Chrome and enter this address – chrome://settings/clearBrowserData
  • After that, drag the toggle button off for the “Keep local data only until you quit your browser” option.
  • Once done, restart Google Chrome and check it fixed the problem or not.

Option 4 – Try to enable the setting that offers to save password

As you know, a lot of websites offers users a choice to save a password and you can also do the same with the Chrome browser. You just have to enable this particular setting by going to the address, chrome://settings/passwords. From there, drag the toggle button for the setting Offer to save passwords, off.

Option 5 – Try to create a new profile for Chrome

If your user profile in Google Chrome ends up getting corrupted, it is most likely the reason why Chrome is unable to save passwords. Thus, you need to create a new user profile. How? Follow the steps below.
  • First, click on the account icon located at the top-right corner of the profile.
  • Next, go to the Manage People section and select Add Person > Add.
  • After that, enter the details to add the new account and then restart Chrome.

Option 6 – Reset Chrome

Resetting Chrome can also help you fix the problem. This means that you will be restoring its default settings, disabling all the extensions, add-ons and themes. Aside from that, the content settings will be reset as well and the cookies, cache, and site data will also be deleted. To reset Chrome, here’s what you have to do:
  • Open Google Chrome, then tap the Alt + F keys.
  • After that, click on Settings.
  • Next, scroll down until you see the Advanced option, once you see it, click on it.
  • After clicking the Advanced option, go to the “Restore and clean up option and click on the “Restore settings to their original defaults” option to reset Google Chrome.
  • Now restart Google Chrome.

Option 7 – Try to clean reinstall Chrome

There are instances when programs leave files behind after you’ve uninstalled them and the same thing can happen to Chrome so before you reinstall Chrome, you have to make sure that you have deleted the User Data folder. To do so, refer to the following steps:
  • Hit the Win + R keys to open the Run dialog box.
  • Next, type “%LOCALAPPDATA%GoogleChromeUser Data” in the field and hit Enter to open the User Data folder.
  • From there, rename the default folder and name it something else, e.g. “Default.old”.
  • After that, install Google Chrome again and check if the issue is now fixed.
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Five Ways of Fixing Error Code 37

What is Error Code 37?

Error Code 37 is a Device Manager Error Code that you may come across when you are unable to use an installed hardware device on your PC. It will pop up on your screen with the following display:

“Windows cannot initialize the device driver for this hardware. (Code 37)”

If you receive the above message, it means that your operating system was unable to acknowledge the drivers for a particular peripheral device.

Solution

driverfix boxError Causes

Error Code 37 mainly occurs due to device driver corruption. However, there are other factors that can trigger this error code, some of which are the following:

  • Missing device drivers
  • Out-of-date device drivers
  • Presence of malware or spyware in the system
  • The particular device is not compatible with your PC

Device driver corruption or other data corruption is not uncommon and part of everyday PC use.

From an installation gone wrong to an unexpected shutdown, commonly generated data errors are considered the main culprit behind error codes.

Further Information and Manual Repair

Just like most PC error codes, Error Code 37 isn’t that difficult to get rid of. There are many DIY methods you can try to have your PC running smoothly in no time. Here are a few methods to resolve this issue:

Method 1: Restart your PC

It is possible that the display of the error code is merely due to a temporary issue with your peripheral device and not anything serious.

Therefore, the quickest and easiest method to solve the error code 37 is to simply restart your PC.

Method 2: Scan for Viruses

If restarting does not do the trick, a quick scan for viruses and removing them is another simple method you can follow to fix your PC.

Since the error code is due to corruption of data, viruses such as malware or spyware create error in your PC’s registry and eliminating them can help restore some of the corrupt data, which also speeds up your PC.

Method 3: Undo recent changes

A possible explanation for the error code may be the recent changes in your Device Manager or due to the peripheral device installation. You can thus undo the changes by either:

  • Remove or change settings of the installed peripheral device
  • Roll back the version of the driver to the one before the update.
  • Use System Restore to reverse the changes made in the Device Manager

Method 4: Manually uninstall and reinstall the drivers

If the above stated methods do not help in speeding up your PC and is still giving you an error code, you may want to manually uninstall and reinstall the corrupt or missing drivers. Here are the following steps:

  • Double-check if the installed external device is properly connected and working smoothly
  • Open Device Manager and double click on the device that is causing problems
  • When it opens, click on the ‘Driver’ tab and click ‘Update Driver’

Method 5: Use DriverFIX

However, updating the missing or corrupt drivers can be time consuming and may also require having a hardware documentation ready that contains specific details about the driver that you should download.

To avoid this time-consuming process, you can use DriverFIX software.

DriverFIX will help you to download the required driver without you having to waste your precious time and effort looking it up in a user manual. This latest software technology is embedded with its own database that tracks the missing or corrupt driver according to your PC’s motherboard version and specific details.

It is user-friendly, which means that it will relieve you from the frustration of such PC error codes appearing from time to time and enable your PC to work efficiently in no time.

Click here to download DriverFIX to resolve Device Manager error code 37 today!

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Stop showing browser tabs when alt+tab, Win11
windows browser tabs removed alt tabAs in previous Windows 10, inside Windows 11 also when you press the ALT + TAB key combination you will get a preview of all running applications along with all Browser tabs so you can go through them and pick the one you want to switch to. Alto, I personally am a big fan of alt-tabbing, I must admit that I am not a big fan of having multiple browsers tabs on screen when I do press key combo. Luckily there is a very easy way to turn this feature off. Turning browsers tabs thumbnails off
  1. Press ⊞ WINDOWS + I to open settings
  2. Click on System in the sidebar
  3. Scroll down and select Multitasking
  4. Find Alt + Tab section and click on the drop-down menu
  5. Pick Open Windows Only
  6. Close settings
Now when you press the ALT + TAB key combination you will still see your browser but only an active tab in it instead of all tabs as different preview thumbnails.
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Windows 11 launch date set for October 5th
windows 11 release dateIt is officially confirmed, Windows 11 release date is October 5th. Windows 11 will be released as a free upgrade to all registered Windows 10 users that have supported hardware for it. The rest of the users will be able to install it via ISO file as a clean installation if their computer supports Windows 10 hardware requirements. The official price for the license for Windows 11 has not yet been set but I assume after release it will be set. Priority for W11 will have users who are upgrading from W10 as stated by Microsoft. Also, it was officially confirmed that Android apps will not be running natively in this first release of Windows 11, that feature will come in a future update, official statement below:
"We look forward to continuing our journey to bring Android apps to Windows 11 and the Microsoft Store through our collaboration with Amazon and Intel; this will start with a preview for Windows Insiders over the coming months,"
The rest of the features will be all included inside Windows 11 on launch.
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How to Fix Windows 10 Error 0x8007000d

Error Code 0x8007000d - What is it?

Error Code 0x8007000d is a common error code that can be found on the Windows 10 Operating system, although it can also appear in previous versions of the operating system, as well.

Common symptoms include:

  • Inability to download new updates.
  • Inability to run the Update tool through to completion.

There are four basic ways to try to resolve Error Code 0x8007000d on your Windows machine. Three of these are pretty simple for even the most basic users, while the final method requires some familiarity with running commands in the Command Prompt. If you don’t feel that you have the skill or confidence to complete the steps listed below, it is generally recommended that you get in touch with a qualified computer repair technician that can assist you in error resolution.

Error Causes

The main cause for the appearance of Error Code 0x8007000d on a Windows machine is that one of the files that the Update tool uses to run one or more updates cannot be found or has experienced damage. Fortunately, there are a few things that you can try on your machine that can be used to attempt to resolve the issues at hand.

Further Information and Manual Repair

Three primary methods exist for the resolution of Error Code 0x8007000d on a Windows machine. As mentioned above, two of these methods can usually be accomplished by basic users, while the third requires some degree of familiarity with the tools associated with the Command Prompt. If you don’t feel that you have the knowledge or skill necessary to follow these steps, contact a computer repair technician to aid you.

Here are the best ways to try to resolve Error Code 0x8007000d on your device:

Method One:  Use the Troubleshooting Tool from Windows Update

From the Windows Update tool, you can attempt to run a scan using the Windows Update Troubleshooter, which can try to identify the specific issue that is occurring and to fix it automatically.

Not only will this tool often fix the problem at hand, but it can also help you to avoid other errors that you may have encountered later on in the Update process. This tool should always be your starting point when you encounter an error as you attempt to download or install updates for your Windows machine.

After the tool has been run, restart your computer to apply any changes and then reopen the Update tool to reattempt installation.

Method Two:  Reset Your Computer

In some cases, the missing or corrupted files may be extensive enough that you need to restore your computer to an earlier point. If you create regular backups of your information or have a past version of the software that you can install, this can help you to resolve the issue. Otherwise, you may need to restore your device to its factory settings to resolve the error.

Always make sure to backup your important files and information before you perform a reset of your device, in order to ensure that you are able to return the computer to its original state when you have finished.

Method Three:  Use Command Line Tools to Resolve the Issue

One of the ways that you can try to resolve this particular error code is the use a DISM tool. This is accessed through the Command Prompt. In order to use this method, follow the steps below:

  • Step One: Open up the search bar in the Start Menu and type in the words “Command Prompt,” selecting it and choosing to run it as an administrator.
  • Step Two: Enter each of the commands below, hitting the “Enter” key when you finish each one:
    • exe /Online /Cleanup-image /Scanhealth
    • exe /Online /Clean-upimage /Restorehealth
    • Exit
  • Step Three: Attempt to run the Update program again. In some cases, you may want to restart your computer before you attempt to run the Update tool again.

If you have not been able to resolve the error code using the steps above or if you are unsure of your ability to follow these steps on your own, get in touch with a trusted computer repair professional that is familiar with the Update process and the errors associated with it.

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Fix 0x00000016 Blue Screen Error
If you are a gamer, you might have encountered either the CID HANDLE CREATION or VIDEO TDR ERROR errors with an error code of 0x00000016 as you play a game. These kinds of Stop errors have something to do with the Graphics card driver. It could be that your Graphics card driver needs to be updated or it may be corrupted. Whichever the case is, you can try fixing this error using the given solutions below but before you proceed, make sure to create a System Restore Point first so that you can easily roll back to the previous state of your computer in case something does not go as expected.

Option 1 – Try checking if your graphics card is enabled and update it as well

Although the problem is quite massive, the fix could be as simple as enabling the graphics card if it turns out to be disabled. There might be some strange reason why your graphics card disables itself. Thus, the best and first option you can try is to check if the graphics card is enabled or not. To do so, follow these steps:
  • Tap the Win + R keys to open the Run dialog box.
  • Then type “devmgmt.msc” in the field and hit Enter to open the Device Manager.
  • After opening the Device Manager, look for your graphics card option among the list of device drivers. Once you found it, check if it is enabled or not. If it’s not enabled, you should see a gray arrow pointing downwards. Right-click on the card and select Enabled.
  • Next, right-click on the graphics card once more and click on the Update Driver Software option and then click on the “Search automatically for updated driver software” option.

Option 2 – Reinstall the Graphics card drivers

  • Tap Win + R to open Run then type “devmgmt.msc” in the field and hit Enter to open the Device Manager.
  • From there, look for the Display adapters and uninstall each one of the graphics card drivers by right-clicking on them and selecting the Uninstall device option.
  • After uninstalling the graphics card drivers, close the Device Manager and tap Win + R to open Run once again.
  • After that, type “appwiz.cpl” in the field and hit Enter to open Programs & Features in the Control Panel.
  • Next, look for any program that’s related to your GPU manufacturers like Nvidia, AMD, or Intel. Right-click on any GPU-related entry and click on Uninstall to uninstall them and then follow the next on-screen instructions that appear afterward.
  • Now restart your computer.
  • Once your computer has restarted, go to the GPU manufacturer’s website and download the latest driver version for your graphics card model and then install it.
  • Restart your computer once again. That should fix the problem.

Option 3 – Try reinstalling the game

If updating and reinstalling your Graphics card driver didn’t help, then you can try to reinstall the game where you’re getting the CID HANDLE CREATION or VIDEO TDR ERRORS.

Option 4 – Uninstall the programs you installed recently

Chances are, some programs that you just installed might be the one that’s causing the BSOD error. Thus, you need to uninstall the program to resolve the problem.
  • In the search box, type in “control” and then click on Control Panel (desktop app) among the search results.
  • After that, select Programs and Features from the list which will give you a list of all the programs installed on your computer.
  • From there, look for the concerned program and select it and then uninstall it.
Note: If you have downloaded the app from the Windows Store, you can simply right-click on it from the application list and then uninstall it. In addition, you might also want to check the hardware components of your computer that might not support the operating system itself. You can disconnect all the external devices like USB drives, scanners, printers, etc., and then reboot your PC. After that, add the devices again one after the other and check if the BSOD error is now fixed or not.

Option 5 – Try disabling your monitor’s Sleep functionality

There are times when the Sleep functionality of your monitor can also cause BSOD errors like CID HANDLE CREATION or VIDEO TDR errors. There are also times when the graphics card is running in the background and the display goes to sleep and then it’s turned back on but you encounter this kind of Blue Screen error. This is why you can try to disable your computer monitor’s Sleep mode.

Option 6 – Run the Blue Screen Troubleshooter

The Blue Screen troubleshooter is a built-in tool in Windows 10 that helps users in fixing BSOD errors like CID HANDLE CREATION or VIDEO TDR errors. It can be found on the Settings Troubleshooters page. To use it, refer to these steps:
  • Tap the Win + I keys to open the Settings panel.
  • Then go to Update & Security > Troubleshoot.
  • From there, look for the option called “Blue Screen” on your right-hand side and then click the “Run the troubleshooter” button to run the Blue Screen Troubleshooter and then follow the next on-screen options. Note that you might have to boot your PC into Safe Mode.

Option 7 – Try to run the Chkdsk utility

Running the CHKDSK utility might also help you resolve the CID HANDLE CREATION or VIDEO TDR errors. If your hard drive has issues with integrity, the update will really fail as the system will think that it’s not healthy and that’s where the CHKDSK utility comes in. The CHKDSK utility repairs hard drive errors that might be causing the problem.
  • Open Command Prompt with admin privileges.
  • After opening Command Prompt, execute the following command and hit Enter:
chkdsk /f /r
  • Wait for the process to be completed and then restart your computer.
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Software review series:CodeTwo QR Code Desktop

What is a QR Code

QR code or if you want to be more technical Quick Response code is a two-dimensional code made of square dots creating a pattern that can be scanned via QR scanner and then interpreted. Usually, they are present on product packaging, on business cards, websites, etc. When you decode a QR code you can get a link to a website or link to a file or whatever, you can get text, image, email, contact information, etc.

QR Code Desktop Reader & Generator sample code

How to decode a QR Code? You can scan it with your mobile devices like iPhone, iPad, Android or Blackberry equipped with additional software for scanning QR Codes. You might want to check out tools like Barcode Scanner or Red Laser. If you don’t have a mobile device or you need to scan a barcode on your PC, simply use CodeTwo QR Code Desktop Reader & Generator.

How this program works

QR Code reading

CodeTwo QR Code Desktop Reader & Generator is a free tool that will let you quickly scan any QR Code from your screen – be it a part of the website, email, banner, or document. Simply run the program and hit From the screen on the top menu. Your standard mouse cursor will change into a cross to help you make a selection on your screen. Simply select an area with a QR Code and the program will automatically scan it. You can scan QR codes from websites, documents, movie files – you name it. You can also select an image file that contains a QR Code and the program will locate it automatically and decode it. To do that, simply click From file on the top menu of the program and select the desired image from your hard drive. If you have a file copied to your clipboard, or if you make a screenshot of a QR Code, QR Code Desktop Reader & Generator will let you decode those QR codes in one click. Just click From clipboard and the program will automatically locate and decode the QR code for you. That is not all, you can also use your camera to scan QR codes. If you have more than one camera, the program will let you choose which one to use. To use this option, simply click From webcam, and you will be able to scan QR codes with your recording device.

QR Code generation

  • CodeTwo QR Code Desktop Reader & Generator also acts as a QR code generator. Creating QR codes is as easy as reading them. Here is how to generate a QR code:
  • In the top menu, click Generate mode on and enter the text you want to translate into QR Code
  • Choose if you want to copy it to the clipboard or save it in a file. The QR Code will be scaled automatically, but you can resize it in the Size settings tab.
  • The resulting QR code can be used however you like. To name just a few options, you can:
  • Upload it to your blog/website which is especially useful for mobile users.
  • Print it on a poster, providing easily accessible links with more information on your event.
  • Send it in newsletters, or include it in your email signature.

QR Codes in email signatures

Inserting QR codes in email signatures lets mobile users quickly grab your contact details, or provides them with links so that they can get more information on your company or topic you were discussing. You can also provide your recipients with a link to QR Code Desktop Reader & Generator. This will help them easily decode QR codes when they open your email on a PC.

QR code

If you want to include a QR code automatically in email signatures throughout a whole organization, try CodeTwo central email signature management solution. It is a very useful tool, which enables you to unify email signatures on Exchange Server and Office 365 (Microsoft 365).
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Task Manager is blank & not showing processes
If the Task Manager is either blank or is not showing processes on your Windows 10 computer, then here are a few things you can do to resolve this issue. This kind of problem can occur due to some system file corruption or some malware infection in the system. Here are some suggestions you can try to resolve the problem with the Task Manager on your Windows 10 PC.

Option 1 – Try restarting your computer

The most common and most of the time effective way to resolve this kind of issue is to simply restart your computer. Thus, you have to restart your computer and see if it helps in fixing the Task Manager issue or not. If not, you can try the next given options below.

Option 2 – Run the DISM tool

If the first option didn’t work, then running the Deployment Imaging and Servicing Management tool can help you resolve the issue with the Task Manager as it will repair the Windows System Image as well as the Windows Component Store in Windows 10.
  • After you access the Advanced Startup options, select Command Prompt by using the arrow keys on your keyboard.
  • Next, type in this command: DISM /Online /Cleanup-Image /RestoreHealth
  • Do not close the window if the process takes a while as it will probably take a few minutes to finish.

Option 3 – Make sure that the display columns are selected in the Task Manager

You have to make sure that you have checked or selected the display columns you want to be displayed. So if none of them are selected, you might not see any details at all. Thus, you need to right-click on the space near Name and select the columns.

Option 4 – Run the System File Checker Scan

System File Checker or SFC is a built-in command utility that helps in restoring corrupted files as well as missing files. It replaces bad and corrupted system files with good system files that might be the reason why the Task Manager is blank or is not showing processes. To run the SFC command, follow the steps given below.
  • Tap Win + R to launch Run.
  • Type in cmd in the field and tap Enter.
  • After opening Command Prompt, type in sfc /scannow
The command will start a system scan which will take a few whiles before it finishes. Once it’s done, you could get the following results:
  1. Windows Resource Protection did not find any integrity violations.
  2. Windows Resource Protection found corrupt files and successfully repaired them.
  3. Windows Resource Protection found corrupt files but was unable to fix some of them.
  • Restart your computer.

Option 5 – Troubleshot the problem in a Clean Boot State

There are some instances that some conflicting programs installed in your computer might be the one that’s causing the Task Manager issue. To identify which program is causing the problem, you need to put your computer in a Clean Boot State. To do so, follow the steps below.
  • 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.)
  • From there, start to isolate the problem by checking which one of the programs you installed recently is the root cause of the problem.

Option 6 – Try scanning your computer using Windows Defender

As mentioned, the Task Manager issue might be caused by some malware in the system and so to eliminate the malware, you have to scan your computer using security programs like Windows Defender.
  • Tap the Win + I keys to open Update & Security.
  • Then click on the Windows Security option and open Windows Defender Security Center.
  • Next, click on Virus & threat protection > Run a new advanced scan.
  • Now make sure that Full Scan is selected from the menu and then click the Scan Now button to get started.
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