Fix Windows Update Error C1900101- (40017 ,30018)

Windows Update is a continuous process that provide the latest security and features to the user. However, most of the time during installation of Windows 10 updates most of the users face different kinds of error and the following error messages are one of them.

Windows 10 install error C1900101-30018 : “THREAD_STUCK_IN_DEVICE_DRIVER”
Update Error C1900101-40017
Update Error C1900101-0x20017
SAFE_OS phase during the boot process, the installer failed.
Cause and Fix for the Error Code C1900101- (40017 ,30018)

1. Fix using Advanced System Repair Tool (Automatic Repair)

The most of the common reason behind windows update failed is corrupted or damaged system files like DLL files, EXE files, sys files etc. There are thousands of tiny system files are there that work specific task. If one of the files gets replaced, deleted or damaged then you may get windows update error C1900101- (40017 ,30018).

Windows is made with huge number of dll files, exe files, sys files, various types of services, databases, etc so, it is not possible to keep monitoring all the files always. A brilliant PC Optimizer tool repairs damages, fix errors, update windows and drivers, and eliminate various types of errors silently.

Outbyte PC Repair Tool does all the above task easily and provides you an errorfree and smooth Windows environment to work so that you can focus on your business only.

3 Steps to Fix this Error
Step 1. Download Outbyte PC Repair Tool [File Size: 16.4 MB]
Step 2. SCAN your Windows PC
Step 3. Click Fix button to Repair Error

Download and Install Advanced System Repair Tool and scan your PC. It has the large database with 25 million of files. It will find all the damaged or deleted system files and reinstall them with the fresh one. After, optimizing with Advanced System Repair Tool, try to install windows update again.

2. Fix Yourself (Manual Repair)

This update error mainly occurs due to the following reasons so, examine each steps and apply carefully.

1. Antivirus/Firewall might be blocking the incoming connections. Disable Antivirus and Firewall for a while and try to update install.
2. System has installed incompatible devices and drivers. Remove all the unnecessary devices and drivers and reboot your pc.
3. Outdated or incompatible Driver. Download Advanced System Repair Tool and scan PC for installing current version of all the outdated driver. This tool also finds missing drivers.
4. Missing System Files. It might be the huge reason behind Windows 10 Update Failed Error C1900101- (40017 ,30018). The system file which is responsible for updating windows might be corrupted, damaged or deleted. So either run sfc /scannow or scan PC using Advanced System Repair for finding and fixing system files issues.
5. System is recovered from the serious virus attack. Antivirus only remove viruses and keeps your PC unstable and damaged. After recovering from the virus attack, your PC needs complete optimization and here Advanced System Repair Tool plays vital role.
6. If problem still persists, install updates in clean boot mode. Here is the detailed guide to start PC in clean boot mode.
7. If you are using .ISO file for installation, then disconnect internet, wifi and lan and then try again.
8. Restart BITS services, Cryptographic and MSI Installer Services. Here is the detailed guide to restart these services. Open this link and follows the Method 3.


There might be various versions of Windows Update Error C1900101 like C1900101-30018, C1900101-40017, C1900101-0x20017 etc and the solution is depends on the configuration of PC, OS version etc. However, I have listed here several beautiful steps that will not only fix your problem but will also optimize your PC for better performance. If you are facing trouble in fixing yourself, then you can opt for automatic repair of the windows update error using Advanced System Repair Tool.

Leave a Reply