Windows installation encountered an unexpected error, 0xE0000100

If you’re encountering the error message Windows installation encountered an unexpected error on your computer while installing Windows 10, you can try the solutions we will present in this post to help you resolve the issue.

When you encounter this issue. you’ll receive the following full error message-

Windows installation encountered an unexpected error. Verify that the installation sources are accessible, and restart the installation.
Error code: 0xE0000100.

The error code can also appear during Windows Update.

During installation, this error can be caused by various problems. It could be caused if there is a problem with the disk partition, with the Installation media – and even if there is low or damaged RAM, corrupted registry files, or incorrect hardware configuration.

Windows installation encountered an unexpected error

If you’re faced with this error code 0xE0000100 during installation or during Windows Update, you can try our recommended solutions below and see if that helps to resolve the issue.

1. Clean the partition
2. Run CHKDSK Utility
3. Run the Hardware Troubleshooter
4. Check RAM
5. Modify the LoadAppInit_DLLs registry key

Let’s take a look at the description of the process involved concerning each of the listed solutions.

1] Clean the partition

You can use the built-in diskpart tool to clean your partitions.

Here, access the Command Prompt and execute the following commands one after the other:

Restart and see if you can install it.

3] Run CHKDSK Utility

A corrupt hard drive or bad sectors on the drive can also lead to the issue. In this case, you can run CHKDSK (check disk) utility to try to fix the disk corruption due to bad sectors.

Run the following command:

On restart check, if it helped.

1] Run the Hardware Troubleshooter

This solution entails that you run the inbuilt Hardware Troubleshooter and see if the error is resolved.

2] Check RAM

Turn off the system and replace the RAM with another RAM. You may also swap RAM slots and then boot the system. Check if the error still persists. Swapping of RAM is required when there is physical damage to RAM connectors or hardware.

3] Modify the LoadAppInit_DLLs registry key

Corrupt registry files lead to serious issues in the system including this error.

Do the following:

Since this is a registry operation, it is recommended that you back up the registry or create a system restore point as necessary precautionary measures. Once done, you can proceed as follows:

• Press Windows key + R to invoke the Run dialog.
• In the Run dialog box, type regedit and hit Enter to open Registry Editor.
• Navigate or jump to the registry key path below:

• At the location, on the right-hand side, double-click on the LoadAppInit_DLLs registry key to edit its properties.
• In the properties window, set the Value data to 0.
• Click OK to save changes.
• You can now close the Registry Editor window.
• Reboot your computer to let the changes take effect.

Windows Update Error Code 0xE0000100

Hope something here helps you.

Date: September 4, 2020 Tags: Installation

Windows installation encountered an unexpected error verify that the installation sources are

This forum has migrated to Microsoft Q&A. Visit Microsoft Q&A to post new questions.

Answered by:

Question

I’m trying to install Windows 7 Ultimate onto a computer that is currently running Windows 7 RC. When I attempt to do an «upgrade» I get a not-unexpected error involving the inability to upgrade from the RC.

However, when I attempt to do a clean install, I get the following error:
«Windows installation encountered an unexpected error. Verify that the installation sources are accessible, and restart the installation.

Error code: 0xE000100″

This error happens regardless of if I try to boot from the disk or run the program after the computer has started. What other information would be helpful?

Answers

You cannot upgrade Windows 7 RC to Windows 7 RTM or Retail version. You can only perform a clean install. The error message may happens if your win7 installation DVD is corrupted. Try to copy all the files from Win7 DVD to local drive then run the setup.exe to perform a custom installation of windows 7. If you even cannot copy the files to local drive, the problem must be caused by the corrupted DVD.

All replies

You cannot upgrade Windows 7 RC to Windows 7 RTM or Retail version. You can only perform a clean install. The error message may happens if your win7 installation DVD is corrupted. Try to copy all the files from Win7 DVD to local drive then run the setup.exe to perform a custom installation of windows 7. If you even cannot copy the files to local drive, the problem must be caused by the corrupted DVD.

I’m having the same problem. So far I’ve tried the same Win7Ultimate x64 disc in two different computers with the same result. It gives the error immediately when I click for the clean install. There was something else on the drives, but it should be unreadable by Windows. Perhaps it checks for some free drive space or even some previous version.

I made an RC1 disc to try loading that instead. Same problem. I have never loaded RC1 before.

Right now, I’m running DBAN on the drive. Also I’ll run DBAN in another system.

Will update later.

. Update
I could only get through the install by starting with a clean drive.

Are you saying that I can’t do a clean install? I actually have to wipe my hard drive and then boot the installer from the disk?

In order to keep anything from a previous version, I would set aside that original drive and install Windows7 on a clean drive. That is considering you have a spare drive available.

I could only get through the install by starting with a clean drive.

You have tried a flat installation of Windows 7: Copy all the files from Win7 DVD to local drive then run the setup.exe to perform a custom installation of windows 7.

This method will help you to determine whether the problem is caused by the corrupted disc.

So I took the computer to Best Buy and gave it to the Geek Squad and told them all about it. I got it back 4 days later, and they said that the mobo was bad. I looked at their notes and got the impression that they didn’t really know what was wrong and didn’t want to get in too deep, but a bad mobo would explain some of the weird behavior that that computer has shown recently.

Just for the record, here’s a loose order of events that happened as I tried to install Windows 7:

1. Attempted clean install while Windows 7 RC was running: error 0xE0000100
2. Attempted upgrade while Windows 7 RC was running: Cannot upgrade from Windows 7 RC.
3. Attempted clean install while Windows 7 RC was running: error 0xE0000100
4. Attempted clean install by booting installer from disk: error 0xE0000100
5. Attempted Windows Vista clean install by booting installer from disk: error 0xE0000100
6. Completed Windows XP Tablet factory restore from disk: Windows failed to start because of a missing configuration file.
7. «»
8. Took computer to Best Buy
9. stuff
10. Concluded that the motherboard was bad.

VARCONER

Блог о программировании, веб-разработке и компьютерах, а также о многом другом…

После установки Windows 7 ошибка: The computer restarted unexpectedly or encountered an unexpected error. Windows installation cannot proceed

После неудачной установки эксперементального Linux совместно с Windows 7, а также неудачной разметки разделов, перестали загружаться вообще все системы. Попытка восстановления Windows не дала результат. После этого начал чистую установку Windows 7. Из установщика удалил все старые разделы, разметил по новому и начал установку. Однако на завершающем этапе получил ошибку: «The computer restarted unexpectedly or encountered an unexpected error. Windows installation cannot proceed». Ошибка циклическая — то есть после перезагрузки, которую советовал сделать установщик, она появлялась вновь.

Решение, кстати, нашлось на официальном форуме Microsoft. Опишу вкратце что нужно сделать:

1. Когда появилась указанная выше ошибка, нажимаем Shift+F10 — открывается командная строка — уже легче!
2. Пишем команду regedit — запускается редактор реестра.
3. Открываем ветку HKEY LOCAL MACHINE/SYSTEM/SETUP/STATUS/ChildCompletion. Справа выбираем параметр setup.exe и меняем его значение с 1 на 3. Жмем ОК.
4. Реестр закрываем и теперь можно нажимать ОК в окне ошибки. Начинается перезагрузка.

После указанных действий, загрузка Windows 7 прошла успешно. Причина возникновения ошибки скорее всего в том, что загрузчику Windows не понравилось что-то в разметке диска. Однако, как видно, это не повод сразу менять жесткий диск — всего-то надо было указать установщику что его работа закончена, выставив соответствующий флаг в реестре.

fix: The installer has encountered an unexpected error installing this package. This may indicate a problem with this package. The error code is 2503.

The installer has encountered an unexpected error installing this package. This may indicate a problem with this package. The error code is 2503.

Replies (1) 

Welcome to Microsoft Community. We are here to assist you will all your Windows related issues and queries.

You have mentioned that you are unable to install the program named “Smartscore” by Musitek which you have downloaded as you are getting the error: “The installer has encountered an unexpected error installing this package. This may indicate a problem with this package.” and the error code shown is “2503”. I would like to have some information regarding this error:

1. When exactly are you getting this error? Is it when you try to open the program setup file which you have downloaded or is it in between the installation of the package?

2. Have you made any recent changes on the computer prior to this issue?

3. Did you try any troubleshooting steps for this issue?

4. Do you have any third party security program installed on the computer?

This might be either due to some issues with the Windows Installer service or it might be an issue with the package that you have downloaded. So, I would suggest you to try downloading the package again and then try installing it.

This might also happen, if the downloaded file is corrupted due to some malicious software infection in the computer.

Let’s try some troubleshooting steps and check if that helps:

Method 1: Check the Windows Installer Service and also unregister and re-register the Windows Installer

Step 1: Check the Windows Installer Service

a) Press “Windows Logo” + “R” and type “service.msc”

b) In the “Service” window scroll down and find the “Windows Installer” service. Double-click “Windows Installer” in the Services list to open its properties window.

c) On the “General” tab, make sure the service is started under “Service status”.

d) If the service was stopped, under “Service status”, then start the service by clicking on the “Start” button, and then click “OK”.

Step 2: Unregister and re-register the Windows Installer

a) Press “Windows Logo” + “R” to open the Run Command Window.

b) In the run command window type the following command and click on “Ok”.

c) Press “Windows Logo” + “R” to open the Run Command Window again.

d) In the run command window type the following command and click on “Ok”.

e) Now, try installing the package again and check.

Method 2: Perform a Clean Boot and find out which application/service is causing this issue.

A clean boot helps to eliminate software conflicts and to determine what is causing the problem. Perform a clean boot on the computer by following the steps given in the link:

Follow all the steps given in this link and try to figure out the application or service causing this issue.

Note: After you have finished troubleshooting, refer the article “How to reset the computer to start as usual after troubleshooting with clean boot” for Windows 8, given under the section “More Information” to reset the computer to start as usual from the above link.

Let’s also check if the computer is infected by any malicious software infections by running the Microsoft Safety Scanner.

Method 3: Run Microsoft Safety Scanner and check if there are any infections in the computer.

I would also suggest you to check if the computer is infected by any malicious software. For this let’s try running the Microsoft Safety Scanner and then check the issue. You can download and run the Safety Scanner from this link:

Note: When running a scan using an Anti Virus program, any data files that are infected may be cleaned by deleting the file entirely, which means there is a potential for data loss.

Hope this resolves the issue. If this issue persists, please get back to us with the results of the above troubleshooting methods.