> Will Upgrading to Windows 10 Delete My Files

Will Upgrading to Windows 10 Delete My Files?

Q: Since released on July 29th, 2015, Windows 10 has quickly become the most commonly used operating system in the market. More and more users upgrade their Windows 7/8 to Windows 10. Now, my best friend wants to upgrade to Windows 10. Therefore, she really wants to know: "Will upgrading to Windows 10 delete my files?"
A: According to Microsoft Answers post, your data will be safe throughout the upgrade.

Will upgrading to Windows 10 delete my files

However, in fact, Win 10 users' feedback shows that some users encountered data loss issues after upgrading to Windows 10. Now, in today's post, I am going to show you two major topics: what should you do if Windows 10 upgrade delete your files and it is very necessary to back up data before upgrading.

Part 1: Fix: Windows 10 Upgrade Delete Your Files

Theoretically, upgrading to Windows 10 will not erase your data. However, according to a survey, we find that some users have encountered trouble finding their old files after updating their PC to Windows 10. A true example is shown here:

Q: Desktop files are gone after upgrade to Windows 10. Where did they go?
I've just upgraded one of my machines to the free Windows 10 upgrade. After the upgrade, my software shortcuts are still on the desktop, but all of the files I had there are gone. I can't find them anywhere. Not even in the "windows.old" folders. This is after the upgrade claimed that it would keep all files and software on the machine.

-from answers.microsoft.com
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In addition to data loss, partitions might disappear after Windows update. Here, I guess you might be interested in this post "How to Fix: Partition Disappears in Windows 10 Anniversary Update".

Now, if you cannot find your files after Windows 10 upgrade, you can try the following solutions to solve this issue.

Solution 1 – Check the Users Folder

As we know, some files might be missing from your computer after Windows 10 upgrade. However, in most cases, they are just moved to a different folder.

Now, you can check This PC > Local Disk (C) > Users > User Name > Documents or This PC > Local Disk (C) > Users > Public to find missing files and folders after upgrading to Windows 10.

users folder

Solution 2 – Recover Lost Files after Windows 10 Upgrade with Data Recovery Software

If you cannot find your files after upgrading to Windows 10, you can try using a professional data recovery software.

MiniTool Power Data Recovery, developed by a famous software development company based in Canada, is recommended here. This professional data recovery software is designed to recover files lost due to various reasons like Windows upgrading, Windows reinstallation, virus invasion, mistaken deletion, partition formatting… And, it is able to Recover Data Back After OS Crashed During Windows 10 Upgrade. Besides, this professional Power Data Recovery offers wizard-like interfaces as well as simple operations, which can help users recover lost data without any problems. What's more, it is a read-only tool. This means that you can recover lost data after Windows 10 upgrade without bringing any damage to the original data.


Note: before recovering missing files and folders after Windows 10 upgrade, you need to download MiniTool Power Data Recovery and install it on computer. You can download the free edition to scan all lost files and recover 1GB data for free. Or, you can directly get the personal edition to recover more unlimited data without affecting the original data. Do not install the Power Data Recovery on the drive containing lost data since that can cause irretrievable data loss.

Step 1: Launch MiniTool Power Data Recovery to get its main interface as follows, and then select a suitable data recovery module.
Here, for instance, you can press Damaged Partition Recovery to recover files after Windows 10 upgrade. In general, as long as the partitions exist, you can recover lost data by using this module.

main interface

Note: if the drive containing lost data is not found on the list, please choose the "Lost Partition Recovery" module to recover lost data.

Step 2: Scan drive.
Select the drive containing lost data, and then press Full Scan button at the lower right corner to begin full scanning on the device.

full scan

The Full Scan function will scan the selected drive, collect and analyze every byte on the drive, and then it will show you a list of possible partitions on the left side.

Step 3: Save data.
Choose the correct partition, check files you want to recover, and then appoint a location to save desired files by clicking Save button.



1. In this window, if you do not know whether a file should be recovered, the feature Preview makes it possible to view some types of files (like pictures and text documents) before recovering, as shown below.


2. If there are so many files found, you can make use of filtering function configured in MiniTool Power Data Recovery to quickly find needed files.

  • Find File: if you remember the file name, click the icon search, and then type file name to find the file directly.
  • Advanced Filter: it filters out needless files by file name, file extension, file size, and creation or modification date. For instance, if you only want to recover pictures, you can choose "*.jpg, *.gif, *.png, *.psd, *.tif" and then click OK button.

advanced filter

3. Of course, you can click Back to go to the partition list window as shown below. In this interface, you can uncheck other partitions and reserve the most suggested one to show its files only. Or, you can click Show Files button, and then this professional Power Data Recovery will launch the Building Virtual File System procedure to search the files. You will also see file/folder tree soon again.

partition list

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Want to know more information about this tool?
Want to know more details about how to find the lost files after upgrading to Windows 10?
Now, you can read this post: How Can You Recover Lost Files After Windows Update.

Solution 3 – Switch to Your Old User Account

Sometimes, files and folders might disappear when you upgrade to Windows 10 and that's because Windows 10 creates a new account for you by default. Although the old account is still present, it is not set as the default account. Now, follow these steps to switch to it.

1) Right-click This PC, and choose Manage.

2) Select Local Users and Groups from the left pane, and then open the Users folder. If the user named Administrator has a down arrow on its icon down, it's been disabled.

3) To enable this account, double-click Administrator icon and open Properties.

computer management

4) Uncheck Account is disabled check box, and then select Apply to enable the account.

account is disabled

5) Log out and Log in Windows 10 as Administrator account again.

Then you may be able to see your previous data or documents which were removed by Windows 10 update.

Solution 4 – Use Search to Look for Your Files

In some cases, if you cannot find your lost files after upgrading to Windows 10, you can use the troubleshooter to fix problems with Search.

1. Enter indexing in the search box on the taskbar, and then select Indexing Options.

2. Select the "advanced Advanced" button to view more options.

indexing options

3. Select the Troubleshoot search and indexing link. Then you may follow the next on-going steps to get lost or deleted document files back.

Note: If you're having trouble finding files you stored on OneDrive, see Find lost or missing files in OneDrive.

Or you may also try the below search steps to find lost files and folders:

  • Some files might be hidden from view. Enter Show hidden files and folders in the search box. Under Hidden files and folders, select Show hidden files, folders, and drives. Then, you can try searching for your files again.

    show hidden files

  • Use the asterisk (*) to look for all files of a certain type. For example, if you want to find lost word documents, you can search *.doc; if you want to find music files, you can search *.mp3.


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After seeing how to recover lost data after upgrading to Windows 10, let's move to another topic – back up data.

Part 2: Back up Data before Upgrading to Windows 10

According to a survey, many users encountered data loss after upgrading their PC to Windows 10. Therefore, it is very necessary to backup all important data before upgrading to Windows 10 in case of any accidents.

Now, I guess you might be wondering:

"How to make a backup of your data before upgrading to Windows 10?"

Generally, a lot of disk cloning software can help you back up data easily. For instance, you can try using MiniTool Partition Wizard. This free, simple and professional disk cloning software offers Copy Disk feature to help you easily and quickly backup all disk data. Copy Disk copies all partitions as well as data from one disk to another within several steps. Besides, it even can copy an MBR disk using GUID Partition Table for target disk, which makes it possible to use all space of disks larger than 2TB. Note: MiniTool Partition Wizard Free Edition doesn't support copying MBR system disk using GUID Partition table for the target disk


1) Download MiniTool Partition Wizard, and then install it on your computer. After that, launch it.

2) Select the disk which needs copying and then activate Copy Disk from the left action panel or from the toolbar.

copy disk

3) Select target disk to save all contents of the source disk and then click Next. Note: please back up all important data on the target disk in advance. Otherwise, all its data will be deleted.

select target disk

4) Select a copying option and click Next.

copy option

In this window, you can manually change partition size and location by changing the length and location of partition handle, or you can directly type exact partition size in MB, GB or even TB.

5) Read the note and click Finish to go back to the main interface of MiniTool Partition Wizard.

6) Click Apply to perform all changes.


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In addition to MiniTool Partition Wizard, MiniTool Solution Ltd. also offers another excellent backup tool for you.
MiniTool ShadowMaker, an all-in-one data protection and disaster recovery solution for PCs, can back up your Windows operating system, selected partitions and even the whole disk. With a copy of backup, you are able to restore computer once a disaster occurs, like system crash, hard drive failure and more.

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Bottom Line

Reading here, I guess you might have a basic understanding of this question "will upgrading to windows 10 delete my files?" In a word, if you cannot find your files after updating your PC to Windows 10, you can try using MiniTool Power Data Recovery to recover lost files without damaging the original data. And, it is recommended to back up data before upgrading to Windows 10 in case of any accidents.

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