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Windows 10 Update Stuck At 99%install

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By Author: luther
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Windows 10 Upgrade Assistant Stuck at 99% Installing mainly occurs in windows 10 update version installation. Many users have informed that they are getting this windows 10 update issue while second phase booting with migration_data operation process running.

Note: If you are still running previous versions of windows, please update to windows 10 to secure your data from cyber attacks. Windows 10 has better security features and Microsoft do update security patches regularly
How to avoid Windows 10 Upgrade Assistant Stuck at 99% Installing ?

Before you update/upgrade any operating system, you should follow some steps to avoid unwanted errors.

Check make of your computer and model, whether it supports the new update you want to install.
Check pre-requisites of versions you are installing.
Back-up your old version through restoring point.
Try to make iso of a new version to install easily.
windows 10 upgrade assistant stuck at 99% installing

Why the computer often shows errors while operating system ...
... update?
You may see this code Windows 10 Upgrade Assistant Stuck at 99% Installing when windows 10 update failures mainly because of version switching not happening smoothly.(when you try to jump version to 1703 by skipping all updates it needed ). Make sure you have latest version and build number before updating to version 1703 of windows 10.

How to fix Windows 10 Upgrade Assistant Stuck at 99% Installing?
Check whether you have installed all updates regarding the operating system.If you have already tried and encountered same issue several times, then follow these steps.

Windows Updates troubleshooting tool –

Use windows update readiness tool to fix many windows update errors like Windows 10 Upgrade Assistant Stuck at 99% Installing. Otherwise use windows update readiness tool (if you are IT professional or support agent) and get suitable KB to fix update issues.

Run a system file scan to check corrupted files:-

System file scanning process is very simple to try while fixing issues with windows issues. Just follow these steps . Open command prompt in admin mode, to do this Type CMD in windows start menu search and right click on CMD application to get through Run as admin option.

cmd window

In the command prompt window, type SFC/SCANNOW and press enter,
The scanning process takes some time to return results.
sfc scan results

Using restore health option to fix corrupted files :-
For most of serious issues, and to save your time the best way to fix this critical issues are restoring to good healthy partition. Before doing this stop the windows update services.

Open the command prompt as admin (Mentioned above in sfc scan process), Then instead of running sfc scannow command type this following command in the window.

DISM.exe /Online /Cleanup-image /Restorehealth

After sometime your machine will be restored to good healthy state. Now you can start your windows updates as usual.

Windows update troubleshooter/fix it tool :-
Microsoft has released several fix it tools/patches for most of updates issues. Depends on your requirement choose a right fix it tool for your issue and run it on your machine. This will help you when there are simple issues like folder missing errors, permissions related issues.

Download fix it tool- for WINDOWS 10 click here, for window 7/8/8.1 click here.

SDF cleaning method:-
In this method , we clean and re create the software distribution folder by deleting all temporary files in it.

Go to C:/ drive, then open windows named folder in it.
Open SoftwareDistribution folder (SDF)
Open DataStore folder and then delete all files and folders in it.
Again go back to SoftwareDistribution folder, open the Download folder and delete all files in it.
Note : while deleting, it may prompt for admin permission. If you are logged in as admin user. just click on ok to proceed.
Reset IPv4 or IPv6 settings:-
Goto the path—–>Control Panel\Network and Internet\Network and Sharing Center
Select your internet Connection ..Click on properties.
IPv4 settings

Select IPv4 and click on properties.
Ipv4 2

Select custom settings for IP address.. and keep google DNS settings and dns
(For IPv6 : 2001:4860:4860::8888 and/or 2001:4860:4860::8844)


Click on OK.
Resetting Operating system:-
Follow this when you have less knowledge in windows technology about command prompts, files and registry fixing steps.

If you are using windows 10, just type in “RESET PC” in the cortana search bar(windows start button search) and select RESET PC from the results.reset pc in windows 10
Then under the RESET PC, click on get started button to proceed.
There are two options to keep your files and complete clean. (You must take back up of your desktop files,pictures,downloads,documents before proceeding to complete clean.)reset pc options in win10
After reset, you may do updates cleanly without any issue. This resetting process takes time so please do it when you don’t have any urgent work with your computer.
During installation you may encounter error 0x800f0906, 0x800f0907, or 0x800f081f, in which case refer to .NET Framework 3.5 installation error: 0x800f0906, 0x800f0907, or 0x800f081f. Note that these are possibly resolved by installing security update 3005628.

For additional support on error Windows 10 Upgrade Assistant Stuck at 99% Installing chat with our technical support.

0x80004005, 0x800705B4, 0x80070020, 0x80070422, 0x8024200B, 0x80070643, 0x8024402F,0x80073712, 80248011, 80200010, 8007371B, 8007370A, 80070570, 80070246, 8E5E03FA, 0x80070190,80246008, 800F081F, 80073712, 8E5E0147, 8024400d, 0x8004fc12, 0x1000, 8024400a, 0x8024a005,0x800b010a, 0x4004f00c, 80245003, 800B0101, 80092003, 8007370D, 80070490, 8ddd0018, 0x80200013, 800B0100, 8007370B, 800705B9, 0x80070424, 0x80070003, 0x80070002, 0x80070005,0x8007005, 0x80072ee7, 80072ee2, c80003fe, c80003fa, 80070003, 80070663, 80070643, 0x8007000d,80072efd, 80240020, 0xc0000142, 0x80080005, 0x8024402C

Error Code 0xc190020e windows 10, Error Code 0XC004F074 windows 10, Windows 10 Upgrade Assistant Stuck at 99% Installing, Wannacry ransomwear attack

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Hi i am luther

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