Tip & How-To about Hetman Software Hetman Photo Recovery

How to recover data after reinstalling Windows?

Working in data recovery business for years, we are used to seeing emails such as this one:
"My computer went wonky, so I decided to reinstall Windows. To make sure all the glitches are gone, I chose to reinstall from scratch on a new partition. After I installed Windows on my computer, all of my files are gone. I know that you guys have a bunch of data recovery tools. Is there a particular tool to help me recover my files? I tried your Hetman Uneraser, but it didn't find anything. Help?"



Indeed, using a simple undelete tool won't do much good to recover files, especially if you install it onto the same disk you're about to recover files from. But first let's see what happens when you reinstall Windows.

Windows Refresh or New Installation?

There are several ways to install Windows over your existing installation. You can choose to refresh (or repair) existing OS, which is generally a non-destructive process and should NOT affect your files in any way. This method only works if you are refreshing or repairing exactly the same version of Windows as you have now. By "exactly" the same, I mean if you have a 32-bit Windows 7, you can't refresh it with a 64-bit version of the same Windows 7. It must be the same.
Sometimes you can upgrade your Windows installation to a new OS. With at least Windows 7, Windows 8 and 8.1 being around in 32-bit and 64-bit versions and numerous editions (Home, Professional, Ultimate, Bing and whatnot), there is a number of complicated rules affecting whether or not your existing system is upgradeable. For example, you cannot upgrade your 32-bit OS to a 64-bit version. If you install a 64-bit OS over 32-bit Windows, it will either boot side by side with your old 32-bit version, or perform a fresh install, potentially wiping your data.
While Microsoft will warn users multiple times before actually deleting partitions or reformatting existing volumes, apparently these warnings are often ignored just the way we ignore those multi-page End User License Agreements. This means data loss.

How To Recover Data After Reinstalling Windows

If you found yourself in a situation where you have a shiny fresh Windows but none of the documents, pictures and other files you had on that disk, you will need to be very careful not to make the situation worse.
First and most importantly, shut down your PC and take the disk out. You don't want running Windows on that same disk you are about to recover. You will need another computer to connect the disk to as a slave. Don't have another computer? Want to try recovering your files from within your new Windows install? Then most probably you either didn't have anything really important and worth recovering, or just don't care about your data at all. If you do, you will take your disk out and you will connect it to a PC running its own copy of Windows. (Or you can boot from a USB flash drive, of course, which is effectively the same. Just make sure you have a data recovery tool stored on that same USB flash drive).

Choosing a Data Recovery Tool

If you are about to recover files missing after reinstalling the operating system, a simple undelete tool won't cut it. The thing is, most undelete utilities will look up records in the file system, searching for traces of files and folders that are marked as deleted. However, after you reinstall Windows (especially if it was accompanied with repartitioning and/or reformatting the disk), the original file system is pretty much gone. There is nothing for traditional undelete tools to look up.
What you need is a universal tool used by data recovery specialists, such as Hetman Partition Recovery. This tool can analyze your physical hard drive in an attempt to discover the original partitions and file systems that were used by the old copy of Windows. If such partitions are discovered, they are then added to the list of volumes available for recovery.
But what if no trace of old partitions or file systems can be discovered? Even if this is the case, you can still recover many types of information such as documents (*.doc/*.docx, *.xls/*.xlsx, and several dozen other formats), pictures, videos, emails, calendars, databases, compressed archives and a lot of other information.

Special Case: SSD Drives

All information above only applies to traditional magnetic hard drives. If you installed a new copy of Windows 7, Windows 8, 8.1 or Windows 10, the OS will "trim" your SSD drive, effectively erasing all traces of information that used to exist on that drive before the new OS. Not sure if your data is still recoverable? You don't have to pay for your data recovery tool right away. Instead, download the free evaluation version, let it scan your hard drive or SSD drive and see if your files can be recovered.

Reinstalled Windows Can Recover My Data Hetman Software

Posted by on

Computers & Internet Logo

Related Topics:

Related Questions:

2 Answers

recover lost data


Take out the memory card of your JVC Everio HDD Camcorder.Put it into a card reader and connect it with your computer.Then download a third party data recovery software to recover data from memory card.I have succeed to recover videos from SD card with Tenorshare data recovery.It can recover data after deeply scanning your hard drive to look for lost data.
Anyway,download a trial version and scan your memory card for free to preview whether your lost ata can be recovered. http://www.any-data-recovery.com/product/index.htm

Oct 28, 2010 | JVC Everio GZ-MG365 HDD Camcorder

1 Answer

Need help using Recovery CDs on TravelMate 290


run the command rstrui.exe to restore the system if it does not work only way is to reinstall os

May 08, 2009 | Acer TravelMate 290 Notebook

1 Answer

data lost after rejuvenation


Support will not help you in this situation.

DO NOT USE YOUR COMPUTER!!
Anything it writes to the hard disk (including virtual memory) reduces the chances of that data being recovered.

There is some software out that that can recover lost data.
Recover My Files is one such piece of software :-
http://www.recovermyfiles.com/

However it is not free. A license costs about $60, It is however one of the better data recovers out there.
There is a free version on the site but if I recall it will only recover files under 700k, if at all (It has been several years since I have used it).

Another option you have is to google data recovery software, sooner or later you will find some decent free data recovery programs.

Whichever data recover program you use remember to run it from another drive, so you don't accidentally over-write your data during the install.

Good luck

Jan 10, 2009 | Lenovo R61 T7300 Notebook

Not finding what you are looking for?

193 people viewed this tip

Ask a Question

Usually answered in minutes!

Top Hetman Software Computers & Internet Experts

Doctor PC
Doctor PC

Level 3 Expert

7733 Answers

kakima

Level 3 Expert

102366 Answers

David Payne
David Payne

Level 3 Expert

14161 Answers

Are you a Hetman Software Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Loading...