How to Fix Windows Activation Error Code 0xc004f050

Error Code 0xC1900101, 0x20017 – What is it?

Error code 0xC1900101, 0x20017 in Windows 10 occurs when Windows users attempt to upgrade to Windows 10 but fail to complete the installation process. This Windows error code may occur due to issues with a third-party antivirus program or problems related to a driver or hardware. When this occurs users will receive an error message and their machine will automatically revert to the original operating system on the device. Common symptoms of the error code include the following:

• Error code 0xC1900101-0x20017 message box
• Inability to complete Windows 10 upgrade

Solution

Error Causes

Like many other error codes affecting Windows 10 users, 0xC1900101-0x20017 may result due to several different reasons. Oftentimes, error code 0xC1900101 -0x20017 affects users who attempt to upgrade their operating system but have incompatible drivers or hardware as well as antivirus or other security systems which prevent the upgrade from occurring. If this error message is not resolved, it could give birth to other error messages such as error code 0x80070652. 

Further Information and Manual Repair

To fix this particular error code affecting Windows 10 devices, you will need to employ at least one manual repair method mentioned within this article. Manual repair methods offer effective solutions as they seek to address the root causes related to Windows error codes. When the manual repair methods are implemented correctly, users are usually able to quickly overcome issues that cause Windows error codes and can thereafter access all the benefits Windows has to offer to its users.

Note, however, that in a few cases where technical skills are required, the need for a Windows repair technician may present itself. In such a case, resort to Windows forums and other resources to access help from a certified Windows professional. Also, consider using an automated tool where necessary.

Method One: Temporarily Disable or Uninstall Third-party Security Software

Some third-party security programs or antivirus software may interfere with the installation process when Windows users attempt to upgrade to Windows 10. To verify if this is the issue causing error code 0xC1900101-0x20017 on your device, temporarily uninstall or disable these applications. You may easily do so by checking the settings of these programs or visiting Settings within the Windows Start Menu.

Once you have disabled these programs on your device, reboot your machine and attempt to update to Windows 10. If the issue was caused by a third-party app, error code 0xC1900101-0x20017 will no longer occur and your machine will successfully upgrade to the version of Windows 10 you attempt to download.

However, in the case where error code 0xC1900101-0x20017 in Windows 10 reoccurs during the installation process, you will need to resort to another manual repair method listed below.

Method Two: Disable Firewall Software

Like method one, this manual repair method can be effective in combating issues related to 0xC1900101-0x20017. This is of course, dependent on whether or not the error code is due to an incompatible security program.

Temporarily disable your firewall by adjusting its settings. Once this step is complete, reboot your machine and attempt to install the latest version of Windows 10. If you are able to complete the process, this means the problem was due to an issue with your firewall. You can then enable the firewall you previously disabled or download another program as its replacement.

If the error code reoccurs, however, consider implementing the next manual repair method on this list.

Method Three: Use Command Prompt to Check for Damaged System Files

Command Prompt can be very effective in helping regular as well as technically skilled users repair issues with their PC. In the case of error code 0xC1900101-0x20017 in Windows 10, access Command Prompt using the following instructions.

• Step one: Right-click Start Menu
• Step two: Select Command Prompt (Admin)
• Step three: Type sfc /scannow

Be sure to enter the command as it is written above, with a space between “sfc” and “/scannow”. Wait until the scan is complete. If there are any errors related to system files, i.e. if any system files are damaged, corrupted, or missing, your machine will begin to fix it. Once the process is complete, reboot your PC then reattempt the Windows 10 upgrade process via Windows Update. If you are successful, it means that you have rectified error code 0xC1900101-0x20017. Otherwise, you may need to contact a Windows repair technician.

Method Four: Download an Automated Tool

If you wish to always have at your disposal a utility tool to fix these Windows 10 and other related issues when they do arise, download and install a powerful automated tool.

Error C00D11B1- What is it?

Error C00D11B1 is a type of Windows Media Player error code. The error C00D11B1 hampers your ability to play videos, MP3 files and songs on Windows Media Player. The error is displayed in the following format:

Error C00D11B1:’Windows Media Player can’t play the file.’

Solution

Error Causes

The cause of error C00D11B1 message pop up on your computer can be narrowed down to one particular reason virtually because this error may be triggered due to several reasons, these include:

• Corrupt DRM license
• Enabled codec of the video in Windows Media Player codecs section
• Registry Corruption

The good news is that this error is not fatal and does not pose serious PC threats like runtime and BSoD error codes. However, it is still advisable to resolve to ensure you are able to watch movies and listen to songs on Windows Media Player without any difficulty.

Further Information and Manual Repair

Here are some of the best and effective do it yourself methods to resolve the error C00D11B1 on your PC right away:

Method 1- Disable the codec of the video option in the Codecs Section

If you are unable to play downloaded movie files on your PC on Windows Media Player, then try this method to resolve the issue. Simply open Windows Media Player, Go to Tools, Options, DVD and then click Advanced Tab. Here find the codecs section, scroll down to the codec of the video you are trying to play and see if it says enabled. If it does, then disable it and then select a decorder for the codec. Now try running the video again on your Windows Media Player. This will hopefully resolve the issue. Nonetheless if the error still persists, try method 2.

Method 2- Delete DRM Licenses & cache and Download it Again

Sometimes the error C00D11B1 can also be trigged by corrupt DRM licenses & cache. To resolve the issue, simply delete all files. First open Windows Explorer (Windows key + E) and then go to C:ProgramDataMicrosoftWindowsDRM. Now delete all files in this folder. Once deleted, Let Windows Media Player download your license again. After downloading the DRM license again, run the Windows Media Player to see if it works.

Method 3- Disable Firewall Temporarily

Firewall can also be responsible for blocking the Windows Media Player streaming. Firewalls often block important ports that are required in order to run some programs. If this is the cause, then simply disable Firewall temporarily to resolve the issue.

Method 4- Repair the Registry

Registry is that part of your computer that saves all the activities performed on the PC and all the files too including both important and unimportant files like cookies, junk files and bad registry entries. If these unimportant and obsolete files are not removed frequently, the registry gets corrupt and damaged. And due to this reason you may experience error code C00D11B1 on your system. To resolve this issue, simply repair the damaged registry by downloading Restoro. This is a powerful PC Fixer integrated with a registry cleaner. The registry cleaner removes all unnecessary files, cleans and repairs the registry in seconds. Click here to download Restoro and fix error C00D11B1 on your PC right now!

There are times when it is really inevitable to delete your hard drive partitions especially if you are already running low on disk space in your Windows 10 computer. Users typically delete the volume which is not being used in such cases in order to free up some space for the volume that’s running low on disk space. To resolve the problem, users tend to use the Disk Management utility to delete hard drive partitions. However, some users reported that the “Delete volume” option is not available as it is grayed out. Thus, users aren’t able to delete hard drive partitions and aren’t able to free up disk space. This kind of problem usually occurs when there is a Page file on the volume that you are trying to delete and so on. Oftentimes, this issue is mistaken for the problem where you are unable to delete an EFI-protected partition. However, in this case, not only you are unable to delete EFI-protected partition but also NTFS file systems. This is really hard to deal with but worries not for there are some potential fixes you can check out to resolve this problem.

Option 1 – Try to manage the Page file in the Partition

As mentioned earlier, if a Page file exists in a partition, you won’t be able to delete it. The page file is what stores your data when the system’s random access memory fills up. To resolve this, follow these steps:

• Go to the Start menu and type “View advanced system settings” in the field and open it from the search results.
• Next, click on Settings in the Advanced tab.
• On the new window that pops up, go to the Advanced tab and select Change.
• Next, uncheck the checkbox of “Automatically manage paging file size for all drives” and highlight the drive you want to delete.
• Then select “No paging file” and click on Set.
• Now click on the Apply and OK buttons on all the windows and restart your computer.

Option 2 – Delete storage partition via Command Prompt

• Tap the Win + X keys or right-click on the Start button and select Command Prompt (Admin) or you could also type in “cmd” in the Cortana search box and right-click on the Command Prompt icon and then select the “Run as Administrator” option from the context menu.
• Once you have Command Prompt pulled up as admin, type in and enter this command – diskpart
• After entering this command, the Diskpart Utility will start. Diskpart Utility is a command-line-based utility just like Command Prompt but it will get a UAC Prompt after you invoke it so you have to click Yes for the UAC Prompt.
• After that, type in list volume and tap Enter to see the list of all the partitions created on your PC. This includes both types of partitions that are visible to the normal users in the File Explorer as well as the ones that are created by Windows 10 by default which helps it in storing the boot files and other essential system files.
• You should see a list of all the partitions made on your computer. Select the partition you want to delete by its Unique Identification number as Volume X where X denotes the Unique Identification Number.
• Next, type in the select volume number command and hit Enter to select the desired volume.
• Then delete the volume you’ve selected and type in the delete volume command and hit Enter to delete the volume you just selected and convert it into unallocated space.

Option 3 – Delete storage partition via Windows PowerShell

• Start by tapping the Win + X keys or simply right click on the Start button and select Windows PowerShell (Admin) or you could also type in “Windows PowerShell” in the Cortana search box and right-click on the Windows PowerShell icon and select the “Run as administrator” option.
• Once you’ve opened the Windows PowerShell, type in the Get-Volume command and hit Enter to get a list of all the partitions on your PC.
• Next, select the drive letter you want to delete and then type in the Remove-Partition –DriveLetter command and hit Enter to delete the selected partition. Note that you need to replace the drive letter with the letter of the partition you want to get rid of.
• After that, it will ask you for confirmation. Just hit the Y key for Yes or hit the A key to say Yes to All. This will delete all the partition you’ve selected and will move them in as unallocated space.

The Microsoft Store error 0x80073d12 occurs when you try to download software from the store. In order to solve the issue follow the presented guide step by step in the order presented.

1. Check do you have enough hard drive space for installation

   Store locates and assigned space on the hard drive before it installs the application, if there is not enough space available it will return the given error. Go to file explorer and check is there enough space available.

2. Check that game is not expansion

   If you are trying to install expansion for the game without owning the required base game, you will receive the mentioned error. Check the store page to see if there are some prerequisites for the game like other games or packs.

3. Install the game from my library

   Press Start. Open the Microsoft Store App. Click the See more … button at the top right of the MS Store app’s window. Click Download and updates on the menu. Click Downloads on the left to open My library. Then click Ready to install to open a list of apps. Click the Install button for the game app that you need to install.

4. Install on another partition

   It was reported that an error vanishes if installation is placed on another partition instead of the default C drive.

In 27 European countries for some time it has been considered for introducing a law that would force phones, tablets, laptops, and other mobile devices to use a single USB Type-C connector.

The European Parlament announced that a provisional agreement has been reached and that it was voted that a single charging solution is USB Type-C. The current agreement applies and covers the next devices: phones, tablets, Readers, earbuds, digital cameras, headphones, headsets, handheld consoles, and portable speakers. All currently existing devices can still be sold without issues but starting in the fall of 2024 all-new products must support USB Type-C charging.

The agreement will also hit Laptops but not on the same date, How is USB Type-C currently not enough for charging laptops, all new laptops that will have to use it are scheduled for fall of 2025.

Although the agreement is reached the EU Parliament and Council still have to formally approve everything.

Apple targeted the most

Apple has been targeted as the main target for rules since their iPhones are still using Apple's proprietary Lightning charging port. Apple sells a lot of iPhones in Europe and even though iPad Pro and iPad Air along with all MacBooks have moved to USB Type-C, iPhones are still struggling with the Lightning port.

Apple criticized the EU’s charger rules when they were first proposed in 2021, telling the BBC, “We remain concerned that strict regulation mandating just one type of connector stifles innovation rather than encouraging it, which in turn will harm consumers in Europe and around the world.” The European Union has said in response that it will update its rules as new technology arrives.

Why was this proposed?

The main problem in Europe that led to this proposition was electronic waste which reached 11 000 metric tons in 2018. European union is afraid that this will keep rising as chargers become larger and heavier in order to accommodate faster-charging speeds. More electronic waste means more hardware slowly decomposing in landfills that will contribute to climate change affecting everyone on the planet, not just the people living in Europe.

If you encounter a blank page with an error message saying, “Origin Error” when you try to load a webpage, then this post will surely help you resolve this error. As you can see, this error is a very uncommon one and it is not about the popular game known as Origin where all you have to do is reinstall the client. Although this error message is a very uncommon one, you will see a blank page with a message saying, “Origin Error” when you attempt to load a webpage. To fix this error, this post will provide you some potential fixes that might help. Follow the fixes given below carefully and see which one fixes the problem.

Option 1 – Use Ctrl + F5 keys to clear browser cache

The first thing you can try is to “Hard Refresh” to clear the cache of your browsers. You can do that by using the Ctrl + F5 keys on your keyboard. On the other hand, you can also clear the cache manually for Chrome, Edge, and Firefox.

Option 2 – Remove the Proxy

You might also want to try removing the Proxy as it could also help you in fixing the Origin error. Here’s how you can do it:

• Tap the Win + R keys to open the Run dialog box.
• Then type “inetcpl.cpl” in the field and hit Enter to pull up the Internet Properties.
• After that, go to the Connections tab and select the LAN settings.
• From there. Uncheck the “Use a Proxy Server” option for your LAN and then make sure that the “Automatically detect settings” option is checked.
• Now click the OK and the Apply buttons.
• Restart your PC.

Note: If you are using a third-party proxy service, you have to disable it.

Option 3 – Try to flush the DNS, reset Winsock and the TCP/IP

You might also want to flush the DNS and reset Winsock as well as reset TCP/IP as it could help in fixing the Origin error. To do so, refer to these steps:

• Click the Start button and type in “command prompt” in the field.
• From the search results that appear, right-click on Command Prompt and select the “Run as administrator” option.
• After opening Command Prompt, you have to type each one of the commands listed below. Just make sure that after you type each command, you hit Enter
  • ipconfig /release
  • ipconfig /all
  • ipconfig /flushdns
  • ipconfig /renew
  • netsh int ip set dns
  • netsh winsock reset

After you key in the commands listed above, the DNS cache will be flushed and the Winsock, as well as the TCP/IP, will reset.

• Now restart your computer and open Google Chrome then try opening the website you were trying to open earlier.

Option 4 – Try using Google Public DNS

You might want to try changing your current DNS to the Google Public DNS. All you have to do is change the DNS settings explicitly on your operating system by using the DNS IP addresses. Here’s are the steps to do that:

• The first thing you have to do is right-click on the network icon in the Taskbar and select Network and Sharing Center.
• Next, click on the “Change Adapter Settings” option.
• After that, search for the network connection that you are using to connect to the internet. Note that the option might be “Wireless Connection” or “Local Area Connection”.
• Right-click on your network connection and click on Properties.
• Then select the new window to choose the “Internet Protocol 4 (TCP/IPv4)” option.
• After that, click on the Properties button and click the checkbox in the new window for the option “Use the following DNS server addresses”.
• Type in “8.8.8” and “8.8.4.4” and click OK and exit.

If you are trying to open a program or a game but you suddenly see a dialog box with a message stating that the application was unable to start correctly along with the Error Code 0xC000007B , STATUS INVALID IMAGE FORMAT then this indicates that the application is not compatible with the architecture of your Windows 10 computer or is missing dependencies. Although error code 0xC000007B can also occur with other various programs, the STATUS_INVALID_IMAGE_FORMAT error code also means that when you try to run an application that’s designed to run on a 64-bit system and hence gets into a termination state. In addition, if you are also pointed to the NTStatus.h file then it means that the error might be caused by some file corruption. Here’s the full context of the error message:

“0xC000007B | STATUS_INVALID_IMAGE_FORMAT | {Bad Image} %hs is either not designed to run on Windows or it contains an error. Try installing the program again using the original installation media or contact your system administrator or the software vendor for support.”

When you see this error message, the first thing you can do is to click on OK to close the application and then try installing the media again to see if it fixes the issue. If not, then you can check out the suggestions given below.

Option 1 – Try installing the application with admin privileges

The first thing you can do to fix the error is to restart your Windows 10 computer and then try installing the application again and this time with admin privileges. Just right-click on the application and select the “Run as Administrator” option. And if your account is a regular one, you need to make sure to ask an admin to help you in installing the application by entering the password when you are prompted to do so.

Option 2 – Install and update Dependencies

There are times when programs and applications need to have drivers and supporting software installed for them to properly work. Although the installation usually takes care of it, it’s time for you to do some manual checks especially if you are getting this issue of abnormal program termination.

1. Install some qualified drivers

A number of high-end games and applications need to have correct and valid drivers for them to work. They just don’t work with general drivers though. Microsoft has this Windows Hardware Quality Labs testing also known as WHQL testing which makes sure that drivers meet the correct experience and pass through the proper testing before certification. Thus, when installing drivers, you need to ensure that they are qualified drivers for your Windows 10 PC.

2. Download and install or update DirectX

As you know, Microsoft DirectX is a suite of technologies developed by Microsoft to provide hardware acceleration for heavy multimedia applications like HD videos and 3D games. Since you are using Windows 10, you have the DirectX 12 version while the earlier Windows versions use the DirectX 11 version.

3. Install the Microsoft DirectX End-user runtime

The Microsoft DirectX end-user runtime gives updates to version 9.0c as well as previous versions of DirectX. To install it, click on this link and download it.

4. Update or install the .NET framework

The .NET framework is used by games and applications during development which means that without the runtime files that are installed in your computer, it definitely won’t work. Thus, you need to install or update this framework. You can also use the .NET setup verification tool to verify it.

Option 3 – Try running the System File Checker Scan

The SFC or System File Checker scan could detect and automatically repair damaged system files that could be causing the Error Code 0xC000007B , STATUS INVALID IMAGE FORMAT error. 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. 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.

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

Error 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!

What is Runtime Error 339?

Runtime Error 339 is a common error code format that appears when a computer overloads with too much data. However, in some cases, it may occur due to the missing registry keys, DLL files, or during installation. It may lead some programs to shut down all of a sudden and may also corrupt files on the system.

Solution

Download Available to Completely Repair Runtime Error 339

Error Causes

This error code is alarming as it is a critical sign of an unstable system followed by improper maintenance of the computer. The potential risks associated with the Runtime Error 339 include:

• System startup issues
• Slow PC performance
• System crash and failure
• System file corruption

Therefore, to avoid these risks and system failure, it is advisable to fix the runtime error 339 immediately.

Further Information and Manual Repair

If you have a Runtime Error 339 issue on your computer, here is a great way how you can fix it right away:

Scan For Viruses

Improper maintenance of the computer indicates that your system might be exposed to viruses and malware. Viruses can modify the Windows registry and lead to Runtime Error 339. Therefore, first, it is important to scan for viruses on your PC.

Identify Software that Causes Errors

Scanning will help you identify software that produces this error on your PC. Once you identify them, either uninstall them or update the program. To uninstall the program, go to the Control Panel and then click on the Add/Remove program if you have Windows XP, if not then click on the Programs and Features item. Now delete the program from your system.

Obtain the Latest Version of the Installer and Re-install the Deleted Program

Once you get your hands on the latest version of the installer, run it on your system by following the on-screen instructions. Install the program. There is also another way to fix Runtime Error 339 and that is by downloading the Runtime Error tool.

Use a Professional Runtime Error Fixer Tool

To fix the error you can also use a professional Runtime Error fixer tool to scan for viruses on your PC. It is available for free download here. Download the tool and install it on your computer. Simply scan your PC after installation. Click the repair button once the scan is complete. This tool fixes problems in just a few minutes.

People are becoming more and more concerned with their privacy and Facebook's flagship messaging application is caught between it all. While still widely popular it has becoming to lose its ground due to many unanswered questions about privacy encryption. Lucky for all of us there are alternatives for more secure messaging.

SIGNAL

Arguably the most secure of all well-regarded messaging apps, Signal is the favorite of the European Commission, as well as newsrooms around the world. While Signal doesn’t disclose how many daily or monthly users the app has, Google’s Play Store says it has been installed more than 50 million times. While using Signal, each voice or video call connected through the app includes full end-to-end encryption. Signal takes an extra step by hiding message metadata so that the location of the original message is missing. While it asks for your mobile number, that number isn’t used with your profile. Instead, it acts as a numeric username. Once registered, you will find 1-1 chat, audio, and video calls, disappearing or “secret” chats, and a privacy lock so nobody can access the app even if they have your phone. Best of all, it’s completely free to use.

TELEGRAM

One of the biggest competitors to Facebook Messenger (and WhatsApp), Telegram is a very strong alternative. With more than 400 million users, it offers an interface that should feel right at home for anyone coming from Messenger. Telegram offers some huge benefits over Messenger, including features like groups that can hold up to 200,000 members for a chat. There is no limit on your media or chat size, and you can share all types of files between users and in groups. From a privacy standpoint, Telegram has robust security, but it is worth noting that only “secret” messages are end-to-end encrypted and can self-destruct. Non-secret messages can be stored on Telegram’s servers so you can pick them up between your devices quickly. That’s a consideration worth knowing prior to making Telegram your default Messenger replacement. Telegram is free across all platforms.

THREEMA

Rising in popularity, Threema is another privacy-focused alternative that has quickly become a competitor to Facebook Messenger. This paid service ($2.99 on both App Store and Play Store) is a pay-once, use forever option. Once you pay the small fee, you gain all of Threema’s touted privacy options, like open-source end-to-end encryption for both messages and calls. Like Signal, Threema won’t require you to link any phone numbers or emails to your account. All chats are handled anonymously, and the service generates a random user ID when you first open and register for the app. No data is collected from any of your chats and no ads are shown. The Swiss-made app does have its own servers hosted in Switzerland, which do not store any chat messages. Another privacy benefit of Threema is the notion that all of your contact lists, groups, and user profiles are hosted on your device, not on the Swiss servers. Because of that, Threema can once again state that none of your personal info is stored anywhere they have access.