Error Code C19000101 - 2000B on Windows 10– What is it?
Error Code C19000101 - 2000B is a Blue Screen of Death (BSOD) error encountered by Windows users in an attempt to upgrade their operating system from Windows 7 or Windows 8/8.1 to Windows 10. The system upgrade does not successfully finish and when the installation is resurrected, it fails then reverts back to the original operating system. More and more Windows users come across this error that may have been triggered by a few reasons to be discussed in this article.
Solution
Error Causes
Microsoft users can experience the BSOD error C19000101-2000B due to the following reasons:
- There’s an incompatibility with the drivers
- Antivirus software
Further Information and Manual Repair
In fixing error code C19000101-2000B, you can try doing it manually. Manual repair methods can offer users solutions effectively and efficiently, having to address the root causes and issues in relation to a number of Windows error codes. If properly implemented, these manual repair methods can help Windows users resolve problems at hand immediately. However, there are cases where the help of a Windows professional is necessary. In such instances, it would be best to consult a certified Windows expert or you can also try using a powerful automated tool whenever needed.
To be able to fix error code C19000101-2000B, implement the first method used in resolving error code 0xc000021a, then you can proceed with this first method:
Method One: Perform Clean-Boot
- Prior to performing an upgrade, you need to disable your antivirus. Or, better yet, uninstall it.
- Ensure that your PC name is simple without hyphens, periods, or dashes.
- Restart your device several times, then try again.
- Disable all USB devices such as a smart card reader.
- If you are using a SCSI hard disk, be sure to have the drivers ready and available for a storage device like a thumb drive to be connected. While on the Windows 10 setup, select the Custom Advanced Option then use the Load Driver command to load the right driver for the SCSI drive. If the setup still fails, try switching to an IDE-based hard disk.
- Launch a clean boot, restart your device, then try again.
- If you are upgrading to Windows 10 using the .ISO file, make sure to disconnect from your internet connection during setup. If your device is connected by Wi-Fi or through LAN, you need to disable both before attempting to run a system upgrade again.
- Switch to a local account if you are connected to a domain.
- Ensure that all external devices such as USB keys, external hard drives, gaming controllers, or printers are not attached to your device.
If you are upgrading to Windows 10 using Windows Update, you can perform a manual repair using the next method.
Method Two: Upgrading Via Windows Update
- Make sure to disconnect from the Wi-Fi or LAN once the download reaches 100% before you proceed with the system upgrade.
- Press Windows + X to open the command prompt window as an administrator.
- Stop the Windows Update service, BITS, MSI Installer, and Cryptographic by inputting the following commands one by one, hitting Enter after every command:
Net stop wuauserv
Net stop bits Net stop msiserver Net stop cryptSvc
- Restart both Software Distribution and Catroot2 folders. You can do this by typing Ren C: WindowsSoftwareDistribution SoftwareDistribution.old and Ren C: WindowsSystem32catroot2 Catroot2.old in the command prompt to change the names of both Software Distribution and Catroot2 files.
- Restart the Windows Update service, BITS, MSI Installer, and Cryptographic by inputting the following commands one by one, hitting Enter after every command:
Net start wuauserv
Net start bits Net start msiserver Net start cryptSvc
- Exit the command prompt then restart your device. You can now try to proceed with the system upgrade again.
Method Three: Disable or Uninstall Antivirus
- If you opt to just disable your antivirus, you just have to right-click on the antivirus’ icon from your toolbar then choose Disable.
- Press Ctrl + Alt + Del to open the Task Manager.
- Check if all the files or services linking to your antivirus are turned off.
- If you choose to uninstall your antivirus (which is recommended), open Control Panel.
- Once the Control Panel window is open, select Programs then Uninstall a Program.
- Look for your antivirus on the list, right-click it then choose Uninstall.

From the menu choose command prompt (admin)
In command prompt type sfc /scannow and press ENTER
Leave the computer for the operation to be completed and Reboot your computer
Most of the time running applications with typical settings is fine but from time to time we might have some applications that will require running with administrator privilege in order to work properly. In this case, it is very easy to do it, you just right-click and choose run as administrator.
Although a very easy solution, it can be quite annoying if running the app is on a daily basis or even more times per day. If this is the case then right-clicking and choosing to run as administrator can be a daunting task, sometimes you can even forget to run it like this in heat of work and some unforeseen consequences might occur.
Luckily there is an easy hack so you can open the chosen application each time as an administrator with a simple double click each time.
REevil is one of the most active and successful hacking groups connected to Russia and operating all over the world. The group recently demanded a huge bitcoin ransom for an attack targeting IT firm Kaseya in the USA.
Since Tuesday blog and payment site run by REvil group cannot be longer reached without any kind of explanation or why.
The reason behind the disappearance is unknown but has sparked speculation that the group may have been targeted deliberately by authorities.
US President Joe Biden said he raised the issue with Vladimir Putin during a phone call on Friday, after discussing the subject during a summit with the Russian president in Geneva last month.
Mr. Biden told reporters that he had "made it very clear to him...we expect them to act" on information and also hinted the US could take direct digital retaliation on servers used for intrusions.
The timing of Tuesday's outage has sparked speculation that either the US or Russian officials may have taken action against REvil - though officials have so far declined to comment and cyber experts say sudden disappearances of groups are not necessarily uncommon.
The development comes after a series of high-profile ransomware attacks which have hit major US businesses this year.
The FBI accused REvil - also known as Sodinokibi - of being behind a ransomware attack on the world's largest meat processing company JBS last month. 