How to Fix the TWCU.EXE Failed to Load Library File Error in Windows 10

In today's IT world, if you want a computer for typical day-to-day actions and gaming, there are 3 primary ways you can go. An Apple computer with its proprietary hardware and operating system or a typical machine with Windows or Linux operating system.

Each system has both advantages and disadvantages and picking the right one might be difficult for some users. From hardware differences to specific software and operating system, each system is aimed at a different type of work, and in this article, we will explore each one and help you in choosing the right one for you.

Apple ecosystem

Apple has managed to create a unique ecosystem of its own devices, from its iMac desktop computers to more professional MAC studio and power MAC and all the way to tablet iPad and iPhone are powered by Apple's own operating system that connects all of these devices into one large system. So if you really need one singular ecosystem this is a huge advantage.

The ecosystem on the side, MAC computer systems are great, some would argue best for coding, design, video work, and sound editing. MAC M2 chip is optimized for all of these tasks and a specially tailored operating system is just the icing on the cake. Specific Apple-made software like a logic pro or final cut also helps a lot to position MAC systems on top of the line.

Reading all of this you might think hey this is the computer for me, it does everything! Sadly the truth is not like that. The first thing that is difficult on MAC systems and a maybe big reason that it is not so adopted outside professional working environment is lack of games. If you are a gamer or plan on using MAC for gaming, well I have some bad news. The second big turn-off is that MAC systems tend to be more expensive than PC systems, yes components are of higher quality but rest assured that you will pay for also for branding.

Get MAC as your workstation for serious work and for good tech support, if you need a plain home computer keep reading.

Windows PC machine

There is no better feeling than assembling your own computer, tweaking hardware to make a monster and despite haters hating, Windows is the best all-around operating system on the market. It is supporting the largest variety of hardware and the largest variety of software.

The best platform for serious gaming and streaming Windows machine has cemented itself as a multimedia powerhouse. But, this kind of computer is not alien to being also a professional machine, you can practically do everything that you can do on Apple or Linux machine inside Windows, yes some things might require extra steps or will be slightly slower but in the end, being able to do anything is the greatest strength of Windows machine.

Of course, every system has its flaws and Windows is not immune to that. One of the biggest is being the operating system for every hardware ever made and every software as well while keeping legacy support for old software and hardware, basically, its biggest strength is in the same time its biggest weakness leading to sometimes stability issues. Also being able to place any kind of hardware can also lead to the same stability issues. Executing something a little slower than other systems and having some extra steps can also be looked upon as weaknesses.

Linux system

First and perhaps for some people, the biggest advantage of the Linux operating system is its price, it is completely free! Other advantages include the great server and networking included in the OS itself, the large amount of customization, and unmatched stability. The ability to write scripts inside the OS terminal is also a great thing and coding is much more streamlined and friendlier than on other machines.

The power of Linux is the ability to change anything, even on the system layer, no other operating system will let you change the basic functionality of the OS itself while Linux will let you do this. It is also the only operating system you can fully use by booting it up from a USB stick and having the same experience as it was installed on a local hard drive. Among other OS mentioned earlier, Linux is by far the lightest one, taking the smallest amount of memory among the three.

The bad side of the Linux machine is the steep learning curve, among the three mentioned operating systems rest assured Linux is the most difficult to learn and be comfortable in it. The operating system will require you to know the hardware and how computers work in order to fully use its potential. Other things that place it behind are not so wide hardware support compared to Windows and the somewhat confusing distro model.

Linux versions come in form of different distro packages and first-time users will face many of them being left in awe of which one to choose. Also installing drivers and software via a package system can also be a tedious task as well, often being that some version of the driver will not work on the newer version of the Linux distro.

Get a Linux machine if you are well versed in computer technology, if you want great customization of the OS itself or if you do not want to spend money on OS and software since almost entire Linux software is open source.

Like in Windows 10, Windows 11 will also support God mode to be enabled and used. For those readers that do know what God mode is, let me explain it in simple terms. God mode is the icon on the desktop that once clicked will open and let you adjust every option in the control panel and some hidden features for Windows inside one application. There are a lot of advantages to having this one-click fast access to features, especially if you are a power user. Luckily creating such an awesome icon and enabling God mode is very easy to accomplish, all you have to do is:

1. Create a new folder where you want to have the God mode icon
2. Rename folder exactly: {ED7BA470-8E54-465E-825C-99712043E01C}
3. Enjoy God mode

As you can see creating and accessing all settings at your fingertips is much easier than most people think. Enjoy your ultimate access to Windows 11 features and if you wish you can drag and drop sections from it into the desktop or anywhere for easy access to that specific topic.

A newfound bug in Google docs is causing it to crush and upon reopening it will crush again making it very difficult to re-access your document. The bug is manifested when a series of the same word is typed into a document and Show grammar suggestion is turned on.

How was it found

A Google Docs user, Pat Needham brought up the issue on Google Docs Editors Help forum.

"I've only tried in Google Chrome, with documents from three separate Google accounts (personal, G Suite Basic, and work one which might be enterprise). All three experience this same issue".

"It's case-sensitive. So trying with 'and. and. And. and. And.' doesn't cause it to crash."

While Needham publicly reported the bug, it appears that the issue was discovered by Eliza Callahan who was writing a poem novel for her novel using Google Docs.

Needham's findings have also been confirmed by other users running Firefox 99.0.1

Another user, Sergii Dymchenko, said strings like "But. But. But. But. But." triggered the same response. Some also noticed putting any of the terms like "Also, Therefore, And, Anyway, But, Who, Why, Besides, However," in the same format achieved the outcome.

A YCombinator HackerNews reader suspected the cause to be the "Show grammar suggestion" option in Google Docs.

A Google spokesperson confirmed the presence of the issue adding, "we're aware of this issue and the team is working on a fix."

How to recover your document

First thing first, turn off Show grammar suggestions so you do not run into issue by accident. In order to turn it off go to Tools and then into Spelling and grammar and untick Show grammar suggestions.

Now, if you already have a document that has been crushed, fear not because there is a workaround to access it. For some strange reason this bug does not manifest on Google Docs mobile app, so you can open the crushed document in the mobile app, delete words that have caused the bug and reopen the document on your desktop.

Until Google comes up with the solution this is currently the only way to address the issue.

If you suddenly get a message telling you that “Your Windows license will expire soon, You need to activate Windows in Settings” on your Windows 10 computer but you know that your Windows 10 is already activated. Worry not for this post will help you get rid of that error message right away. Before you get started, make sure that you have the Windows product key with you. If you don’t, you can get it by running the following command in an elevated Command Prompt:

wmic path SoftwareLicensingService get OA3xOriginalProductKey

Take note of the product key and then proceed to the options given below.

Option 1 – Try activating Windows 10 again or use another product key

• If you’re sure that you have the correct product key, click the Go to the Settings button.
• After that, click the Activate button once again.
• If you have another license key, you can also use that as well, just simply click on the Change product key.
• Then enter the new product key and click on Activate. That should fix the problem, if it doesn’t, refer to the next option below.

Option 2 – Try to reset the licensing status

• Click the Start button and then type “cmd” in the Search box and then tap Ctrl + Shift + Enter to open an elevated Command Prompt.
• Next, type the “slmgr –rearm” and hit Enter to reset the licensing status.
• Restart your computer and check if the error is now gone or not.

Option 3 – Try uninstalling the product key and re-enter it once more.

• The first thing you have to do to uninstall the product key is to know the Activation ID of your Windows installation. To do so, open an elevated Command Prompt and type this command, and hit Enter – vbs /dlv
• After you enter the command, you should see the licensing status and Activation ID. And to get all the Activation IDs of all the installed Windows versions, key in this command and hit Enter – vbs /dlv all

Note: The “/dlv” parameter will give you the license information for the installed operating system.

• After you enter the second command, you should see a Windows Script Host window with all the Windows licensing and activation status. Take note of the Activation ID.
• Next, in the same elevated Command Prompt, type this command – slmgr /upk <Activation ID>

Note: In the third given command, “/upk” stands for “uninstall product key”. This parameter uninstalls the product key of the current Windows edition.

• Restart your PC. After that, your computer will be in an unlicensed state so you need to re-enter the product key again.

Option 4 – Try rebuilding the Tokens.dat file.

The issue might be caused by a corrupted Tokens.dat file. The Tokens.dat file is a digitally signed file that stores most of the Windows Activation files so if it is corrupted then no wonder you’re having activation issues. To rebuild the Tokens.dat file, refer to these steps:

• From the WinX Menu, open an elevated Command Prompt.
• After opening Command Prompt, you need to type each one of the following commands and after you type each command, hit Enter.
  • net stop sppsvc
  • cd %windir%ServiceProfilesLocalServiceAppDataLocalMicrosoftWSLicense
  • ren tokens.dat tokens.bar
  • net start sppsvc
  • exe %windir%system32slmgr.vbs /rilc
• Now restart your computer.

Option 5 – Try running the Windows 10 Activation Troubleshooter

• Go to Settings and then select Activation.
• After that, click on the Windows Activation and then troubleshoot. This will help you address most of the commonly found activation issues in Windows devices.

Option 6 – Try activating Windows 10 via mobile phone

Activating Windows 10 can also be done using your phone. Just note that you have to call Microsoft to do so.

• In the Start Search box, type in “Slui 4” and tap Enter.
• Next, select your country and click on Next.
• Keep the window open and call the toll-free number of the country you’re from.
• Afterward, a confirmation ID should be given by the automated system which you must take a note of.
• Finally, in the box on the window, type in the confirmation ID and click on the Activate button. That should do it.

Loving Windows 11 so far? We sure are. Microsoft has clearly decided to take its OS to the next level and keeps showing it through every update. It makes you wonder what’s next - and today, you’ll find out!

Tons of new features have been leaked, and we can probably expect them with the 23H2 update. Here’s everything you need to know so far.

What’s Windows 11 23H2 bringing?

There are plenty of new features already confirmed for Windows 11. The only issue is we don’t know for sure if they’re coming with the 23H2 update or separately, at a different time. Whatever the case, a lot of them are pretty exciting.

Here’s an overview of what we might be getting this fall.

• Windows Copilot. Microsoft wants to add this AI-powered feature based on chatbots like Bing Chat and ChatGPT to assist users with all kinds of actions and tasks on the platform. As part of this development, the integration of first- and third-party plugins and the Bing Chat AI will be enhanced. This is a pretty amazing addition to look forward to, if you ask us.

• Dynamic Lighting. RGB lovers will rejoice upon this one! Dynamic Lighting will allow you to control your RGB-powered components directly through the Windows Settings, allowing smooth integration of your favorite peripherals with your OS. No need for third-party software anymore!

• Taskbar enhancements. Microsoft has announced some neat improvements to the Windows 11 taskbar. For one, we’ll be able to hide the Time and Date now, which is extremely useful for focus, but also for clean screenshots. Another change is the ability to shut down programs directly from the Taskbar, without having to run the Task Manager.

• Expanding native support for archive formats 7-zip, rar, gz and others on the libarchive open-source projects.

• Microsoft Store AI features. The theme of AI power is clearly being taken up a notch, because the Microsoft Store seems to be getting several awesome features in this regard. One of them is AI hub, which “curate the best AI experiences built by the developer community and Microsoft” (Windows Developer Blog). We’re not sure what that means exactly, but we sure can’t wait to see.

Another is AI-generated keywords, designed to improve the discoverability of apps you’re searching for. Moreover, the AI-generated review summary is designed to give us a simpler experience looking at reviews. Huge numbers of reviews will be compiled into a summary that’s easy to scan and lets us discover new content faster.

• Other Microsoft Store improvements. Business owners will be happy to hear that Microsoft Store ads will now reach 150+ regions worldwide, significantly increasing the audiences they can target. Furthermore, there will be enhancements to the Backup and Restore functionality to give users a more seamless experience in case they switch devices. 

• File Explorer changes. Rumor has it that Microsoft is working on a Gallery to be embedded within the File Explorer. The addition of a Recommended section might be on the horizon as well. 

• Widget Panel update. The introduction of the Widget Panel in itself was exciting for many. As a next step in the development of this feature, Microsoft is planning to make it possible to pin widgets to the desktop. 

• Presence sensor. You might actually already have this one, as it was rolled out as part of Moment 3 for compatible devices. With the Presence sensing app, found in the Privacy settings, you can decide which (if any) apps use APIs to detect the state of your activity on Windows. This can significantly enhance privacy and security, as you can have apps containing sensitive data lock automatically when unattended. If you’re a laptop user, it can also be beneficial to your battery life.

• Bluetooth LE. Microsoft is adding support for Bluetooth Low Energy, a functionality that allows reduced battery consumption when devices are connected.
  
• Adding more languages to the Live Captions feature. This specification is only as powerful as the languages it supports. Microsoft is reportedly working on expanding the list with 10 more languages.

Summary

We’ve got some interesting stuff to look forward to with the next major Windows 11 update. And these are just the things the Internet’s actually heard of, so who knows what else Microsoft might be planning? It remains to be seen, hopefully just a few months from now. 23H2 has been released on October 31st.

Microsoft allows its users to download a copy of Windows to install on PCs. However, when you enter the key after the installation and you got the Activation Error 0xC004F212 instead, then it means that the license key and the Windows version you’ve just installed, do not match. When you encounter this error, you will see the following error message on your screen:

“The product key used on this PC didn’t work with this edition of Windows. Activation Error 0xC004F212.”

Every time Microsoft generates a license for a copy of Windows, it is associated with one particular Windows variant. Windows comes in many editions like Enterprise, Home, Professional, and so on. For instance, if you bought a license for Windows 10 Enterprise but you have installed Windows 10 Professional instead, then the activation will surely fail and you’ll encounter the Activation Error 0xC004F212. You will be asked to select which edition you want to install when you reinstall Windows 10 using a digital license. If you opted for an edition other than the one you are licensed to use, then you will most likely get the Activation Error 0xC004F212. If you have purchased your license key from a store or some website, you might want to check back with them about the exact version of Windows. Doing so will help you narrow down the problem. And if you have second thoughts about the license key’s validity, you can just reach out to a Microsoft Support agent to check the validity of the license key. Also, if have bought it from the store, there should be an option to get a refund. That way you can choose to buy the right version of Windows.

Option 1 – Try running the Windows 10 Activation Troubleshooter

The first thing you can do to resolve the Activation Error 0xC004F212 is to run the Windows 10 Activation Troubleshooter. To do so, follow these steps:

• Go to Settings and then select Activation.
• After that, click on the Windows Activation and then troubleshoot. This will help you address most of the commonly found activation issues in Windows devices.

The Windows 10 Activation Troubleshooter will determine if your license key is a valid Windows 10 digital license for an edition that is not currently installed. If it turns out that it’s not, then the troubleshooter will show you how to install the correct edition.

Option 2 – Try forcing Windows 10 ISO to use the right version

You can also try to force Windows 10 ISO to use the correct version depending on the product key. Note that this option only works between Windows 10 Home and Professional version since they both have a common ISO. So if it’s Enterprise, then this option won’t work for you.

• Extract the Windows 10 ISO files using an extractor.
• Then browse to the folder you created and go to the sources folder.
• From there, you need to create a text file named “PID.txt” and make sure to follow the exact format given below:

[PID] Value=xxxxx-xxxxx-xxxxx-xxxxx-xxxxx

Note: “xxxxx” is the KEY to your Windows version.

• Next, you need to create the ISO again or bootable media that will repack everything and then create the Media file. You can use the Media Creation tool for this.

Note: Windows will check the key during the installation and will figure out the right version of Windows.

Option 3 – Contact Microsoft Support for assistance

If you’re at your wits’ end in trying to update your Windows 10 computer, you should consider contacting Microsoft Support for help as they can offer you various options that would make fixing Windows Activation Error 0xC004F212 a lot easier and faster.

System Interrupts are operating system processes that function as an alert system for the CPU. So whenever a scenario needs the attention of the CPU, it alerts the CPU about it. In turn, the CPU suspends what it is doing, saves it, and then takes care of that important job and once that job is completed, it resumes back to what it was doing. This indicates that although System Interrupts appears as a process, it’s actually not. As a matter of fact, it is like a manager that reports to the CPU about all interrupts that happen on a hardware level, e.g. hardware interrupts. And if there are lots of interrupts, this means that there might be various errors occurring on a hardware level. As a result, it may take a lot of system resources. And if you consider disabling System Interrupts, stop right there as your computer will almost become useless without it. So if you see System Interrupts consuming high CPU usage in your Windows 10 computer, you can fix it without having to disable it and cause more problems. If System Interrupts takes up more than 5 to 10% of CPU, then you definitely have a problem. This could be happening due to some hardware or driver issue. The first thing you can do is to try rebooting your computer once and see if the issue comes back or not. High CPU usage of System Interrupts is a huge backlog for the CPU and it stays in the loop. If a simple system restart didn’t fix this issue, here are some suggestions you can try.

Option 1 – Try to update the hardware drivers

As stated, the problem might have something to do with hardware drivers so you can try to update these drivers and see if it works.

• Reboot your computer into Safe Mode with networking support.
• Tap the Win + R keys on your keyboard to open the Run dialog box.
• After that, type “devmgmt.msc” in the field and hit Enter or click OK to open the Device Manager.
• After opening the Device Manager, update all the outdated Hardware drivers on your computer.
• Next, right-click on all the driver entries that are appropriately labeled, and then click the Update driver option.
• Now restart your PC and check if the BSOD error is fixed or not.

Note: On the other hand, if a recent update has caused the System Interrupts high CPU usage, then you might want to roll back your hardware drivers to their previous versions. You can check with the Windows Update History to check out any recent updates as well as the previous ones.

Option 2 – Try to disconnect and reconnect all hardware and cables

A lot of users reported that they were able to fix the problem by disconnecting and reconnecting cables and hardware like scanners, printers, cameras can help in fixing the problem. In addition, you can also boot your computer in a Clean Boot State so that you can find the problematic hardware by hit and trial method. Refer to the steps below to do so:

• 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.)

Option 3 – Try to enable or disable Hardware

If you do not want to remove hardware, you can just disable them using the Device Manager. Note that this can also be applied to the internal hardware.

• Tap the Win + X + M keys to open the Device Manager.
• Next, navigate to the device you want to disable.
• Then right-click on it and choose to disable the device.

Note: Make sure that you disable one device at a time and then give it a couple of minutes and check if there are any changes in the CPU usage to pinpoint the hardware. And if there is no change, you need to enable the device you’ve just disabled and then proceed to disable the next hardware device. If there are changes, then it’s probably the culprit. Just keep in mind that you must no disable any device that is needed to keep your system up and running.

Option 4 – Try to update the BIOS/UEFI

Updating the BIOS/UEFI can help you fix the high CPU usage of System Interrupts but as you know, BIOS is a sensitive part of a computer. Even though it is a software component, the functioning of the hardware depends on it largely. Thus, you must be careful when modifying something in the BIOS. So if you don’t know much about it, it’s best if you skip on this option and try the other ones instead. However, if you are well-versed in navigating the BIOS, then follow the steps below.

• Tap the Win + R keys to open the Run dialog box.
• Next, type “msinfo32” in the field and press Enter to open System Information.
• From there, you should find a search field on the bottom where you have to search for the BIOS version and then press Enter.
• After that, you should see the developer and version of the BIOS installed on your PC.
• Go to your manufacturer’s website and then download the latest version of BIOS on your computer.
• If you are using a laptop, make sure that you keep it plugged in until you have updated the BIOS.
• Now double click on the downloaded file and install the new BIOS version on your computer.
• Restart your computer to apply the changes made.

Option 5 – Run the Hardware and Devices Troubleshooter or the Performance Troubleshooter

Hardware and Devices Troubleshooter:

• 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.

Performance Troubleshooter:

• Tap the Win + R keys to open the Run dialog box.
• Type “exe /id PerformanceDiagnostic” in the field and hit Enter to open the Performance troubleshooter.
• Then click on Next to get started. Wait until the process is completed.

What's Error 0x8004060c?

If you use Ms-Outlook. You may experience the malfunction 0x8004060c sooner or later. This malfunction was proven to arise in nearly every MS Outlook variation be it 2010 or 2,000, 2007. The malfunction 0x8004060c hinders your capacity to deliver and get e-mails from and your MS-Outlook account and happens without any forewarning. The error happens when the PST file grows too big and there's almost no memory to handle the increase (Which is rather rare nowadays). Generally, the PST file has about 2 gigabytes upper limit and when you reach that, this error is unavoidable. This error happens when you attempt incorporating data that is fresh into your MS-OUTLOOK Account.

Solution

Error Causes

This malfunction might generate difficulties for you personally as your e-mails vanish and can happen suddenly. The system could also crash at times unpredictably. You may not be able to see fresh notifications and attachments in your e-mail. Also, it's also possible to drop significant contact details. What's more, this malfunction could stop e-mails that are fresh to arrive in your inbox. Therefore, it is undoubtedly a significant issue that has to be repaired immediately. The following may be some of the causes for error 0x8004060c:-

• This error might occur when OST/PST file got corrupt.
• OST file becomes inaccessible due to Exchange connectivity or synchronization issue.
• OST/PST file exceeded its default maximum file size.

Further Information and Manual Repair

In the event that you find the malfunction 0x8004060c at any stage, you should do the repair instead of risking dropping connections and all the significant data in your account. The easiest way to repair this malfunction and to handle this issue would be to download the Restoro. Click here to obtain this fix tool on your computer. After installing, click your mouse's left button after which can use the application. It repairs the error code 0x8004060c in the least period and walks you through the entire repair procedure quickly.

DirectX encountered unrecoverable error usually face gamers when they try to star certain game. In this guide, we will help you to get over it and solve the issue. Follow steps in this guide one after another since they go from most simple ones to complex ones so following is advised in order not to waste a ton of time and resources doing wrong tasks.

1. Check your game page and your DirectX

   The first and most common thing that can cause this type of error is when your installed DirectX is not the same version that the game requires. Check the game store page to see system requirements and write down which DirectX version it requires in order to run. Then press ⊞ WINDOWS + R to bring run dialog and type in it DXDIAG and press ENTER DX diagnostic window will pop up and at the bottom, you can find which DirectX version is installed on your system. If versions are different, install the required DirectX version and run the game.

2. Update or reinstall GPU drivers

   DirectX can get corrupted via bad driver update, in order to fix this, reinstall or update your Graphic drivers to the latest version from the official manufacturers' website.

3. Set custom scaling to 100

   Go into Windows settings and set custom Display scaling to a value of 100, sign out, and then sign back in.

4. Delete registry key

   Note that you should do this as the last option and be very careful since you can crash whole Windows in this way. Press ⊞ WINDOWS + R to open the run dialog and type RegEdit in it to open the registry editor. Find this key: ComputerHKEY_CLASSES_ROOTPROTOCOLSFiltertext/XML and delete it from the registry, you might want to do a backup of the registry first, just in case.

If you continuously encountered the “VirtualBox FATAL: No bootable medium found, System halted” error when you try to install Windows 10 in VirtualBox, read on as this post will give you some potential fixes to resolve the problem – you will be guided on how to choose the ISO image to fix this error in VirtualBox. This kind of error is a very common one especially if you have a corrupted ISO file or if you have not selected an ISO file for your virtual machine. Like pointed out, this error pops up when you have a corrupted ISO file or if the ISO file is not attached to the virtual machine. You have to select the ISO file while you create the virtual hard disk, else, you will most likely face this problem, and to fix it, you need to download fresh Windows ISO, create a new IDE Controller, assign Windows ISO to the IDE Controller and then boot your virtual machine. For detailed steps, follow the instructions below but before you start, make sure that you have a valid and uncorrupted Windows ISO. Step 1: First, you need to open the VirtualBox program on your computer and select the virtual machine. Step 2: Next, click on the Settings button or you can also right-click on the virtual machine and select Settings from the context menu. Step 3: Once you’re in the Settings panel, go to the Storage section and from there, create a Controller: IDE. Step 4: To create a Controller: IDE, click the Add new storage controller icon and select the “Add IDE Controller” option. Step 5: After that, click the Add optical drive icon and click on the Choose disk button. You will then see all the attached and non-attached ISO files. However, you have to add the new ISO file that you just downloaded. Step 6: To add the new ISO file, click the Add button and select the ISO file and then select the .iso file from the Non Attached section. Step 7: Now click the Choose button and afterward, make a checkmark in the Live CD/DVD checkbox and then select the IDE Primary Master from the drop-down menu of the Optical Drive. Step 8: Once you’re done, save the changes made and try booting into your virtual machine again.