Windows 10: Question about Clean Booting

Does clean booting delete the files I've created and files I've downloaded?

:)

 

Silent boot failure

List your specs out and tell us each step in cleaning you did.

 

Clean Boot Question - Restart or Not Restart

Clean Boot Question

After doing the steps for a Clean Boot, I have seen two answers about whether to Restart or not Restart. Which is the correct answer?

1. On the Startup tab of System Configuration, select OK. When you
RESTART the computer, it's in a clean boot environment.

2. You will see a restart prompt. Click on the Exit without restart button.

Jerry

 

Installation Failure C1900101-4000D and Clean Boot recommendation questions

I posted the below question on August 4 and received a quick reply suggesting I perform a clean boot. Please see email stream below.

I have further questions on performing the clean boot and potential risks. Can anyone please provide answers to the following:

1) The link provided (in the below response) for downloading the upgrade to an disc or thumb drive before installation. It also instructs that in order to do this type of installation I will need the Windows product key.

How do I get the key for the Windows 10 upgrade?

2) Does doing a clean boot mean I will lose the capacity to revert back to Windows 7 if this fails? I am worried about losing any ability to recover an operating system if the Windows 10 upgrade does not take with this method.

Any help is appreciated

Cyprin

Installation Failure C1900101-4000D


CY

asked on

I have been trying to upgrade to Windows 10 but get the following error code C1900101-4000D.

Upgrading from Windows 7 SP1 on an HP Dv7 laptop.

The download occurs but the upgrade cannot complete.

Any help is appreciated.

Thank you

21 people had this question

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• All replies (2)

Waseemulla S replied on

• Microsoft
• Forum Moderator

Hi,

Welcome to Microsoft Community.

It means your installer was not able to pick the installation files while upgrading.

I suggest you to place the computer in clean boot, disable Antivirus and then upgrade using an ISO.

Try the following steps:

Step 1: How to perform a clean boot in Windows: https://support.microsoft.com/en-us/kb/929135

Note: The steps apply for Windows 10 as well.

Step 2: Disable antivirus software:

http://windows.microsoft.com/is-is/windows/disable-antivirus-software#1TC=windows-7

Note 1: Make sure to enable Antivirus after the troubleshooting.

Note 2: After the troubleshooting is done make sure to refer the section " How to reset the computer to start normally after clean boot troubleshooting" from the Clean boot article.

Now, you may try to upgrade from here:

Download Windows 10

Hope this helps.

Regards,

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CY

replied on

Dear Waseemulla S,

Thank you for your help. I have a further questions on the process you outlined.

1) The link you provided for trying the upgrade Download Windows 10 leads me to a page that has the instructions I've copied below. Specifically, it instructs that I will need the Windows product key.

How do I get the key for the Windows 10 upgrade?

2) Does doing a clean boot mean I will lose the capacity to revert back to Windows 7 if this fails? I am worried about losing any ability to recover an operating system if the Windows 10 upgrade does not take with this method.

Thank you for your help.

Best regards-

Copied text from Upgrade Webpagehttp://www.microsoft.com/en-us/software-download/windows10

Before you begin

• Make sure you have:
  • An internet connection (internet service provider fees may apply).
  • Sufficient data storage available on a computer, USB or external drive for the download.
  • A blank USB or DVD (and DVD burner) with at least 4 GB of space if you want to create media. We recommend using a blank USB or blank DVD, because any content on it will be deleted.
• Read the System Requirements.
• If you will be installing the operating system for the first time, you will need your Windows product key (xxxxx-xxxxx-xxxxx-xxxxx-xxxxx). For more information about product keys and when they are required, visit the FAQ page.