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31 May 2024  Jennifer Thatcher  Technology Manager of Test Dept.
 

Summary
Learn how to defragment Windows 7 system disks to improve computer speed. Follow these detailed methods for effective disk defragmentation.



Table of contents

table iconI. How to defragment disk in Windows 7
table iconII. Use Renee Undeleter to recover lost data
how to defrag windows 7

I. How to defragment disk in Windows 7

In Windows 7, frequent file deletions and writings generate disk fragmentation. If not cleaned up regularly, this slows down the computer, increases startup time, and may shorten the hard disk’s lifespan. To improve system performance and ensure smooth operation, perform disk defragmentation at least once a week.
As we all know, disk defragmentation is for mechanical hard disk operations, but now most users have installed SSD solid state drives for their computers, so do Windows 7 devices equipped with solid state drives need to be defragmented?
SSDs do not need defragmentation for three reasons:

  • The read time for each block is constant, and performance depends on the internal control chip and flash memory. Traditional defragmentation does not improve performance.
  • SSDs have limited write cycles. Defragmentation involves data transfer, reducing the SSD’s lifespan. Unnecessary data erasure should be avoided.
  • SSDs have a “finishing” function. The TRIM function serves a similar purpose to defragmentation.
To sum up, if your Windows 7 device has been replaced with an SSD, you do not need to defragment the disk. If your Windows 7 uses a mechanical hard disk, you can use the following methods to defragment the disk. Let’s go together Learn it.
The steps are as follows:
Step 1: Run the Windows 7 device, and then navigate to (Start)-(All Programs)-(Accessories)-(System Tools)-(Disk Defragmenter) option.
open disk defragmenter windows 7
Step 2: Next, select the drive that needs to be optimized, and then click the (Analyze Disk) button to start analyzing the current status of the disk.
defragment disk in Windows 7
Step 3: Once the disk analysis is complete, proceed with defragmentation if fragmentation is above 10%. (For demonstration purposes, we will continue with defragmentation.) Select the disk to defragment and click the Disk Defragmentation button.
defragment disk in Windows 7
Step 4: Once disk defragmentation is complete and fragmentation shows 0%, you can defragment other disks by repeating the process. If finished, click the Close button.
Disk defragmentation can improve computer speed, but it may lead to data loss due to data overwriting. Before defragmenting, ensure there is no data that needs recovery. Avoid defragmenting disks with recoverable data.
If you accidentally delete or clear file data, use professional data recovery software to recover it. We recommend Renee Undeleter. Learn more about this software and how to use it below.

II. Use Renee Undeleter to recover lost data

1. What is Renee Undeleter?

Renee Undeleter is software designed to restore system data files. Whether you’ve accidentally deleted important files, emptied the recycle bin, or formatted the disk/storage, this tool can retrieve lost data. It includes four functional modules: Fast Partition Scan, Whole Partition Scan, Whole Disk Scan, and Image Creation, addressing all potential data loss issues comprehensively and conveniently.
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Image creation Create a partition image to read and back up data;

Supported devices SD card, SDHC, SDXC, USB flash drive, hard disk and computer.

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Multiple scan modes Fast partition/whole partition/whole disk scan;

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2. How to recover lost data with Renee Undeleter?

Step 1: Download, install and run Renee Undeleter (do not install it on the disk with lost data), and select the (Fast Partition Scan) option in the main interface.
fast partition scan with Renee Undeleter
Step 2: Select the partition to scan and click (Next).
scan disk with Renee Undeleter
Step 3: Select Fast Scan mode on the scan mode interface, then click Next to start the scan. If the file is not recovered after the quick scan, select Deep Scan to fully scan the partition. Please be patient as this mode takes a long time.
fast scan lost data
Step 4: Preview the scanning results, you can select the target files to be recovered and click the (Recover) button.
Note: Do not save the recovered files in the original disk to avoid data overwriting, you can choose another disk to save them.
recover files with Renee Undeleter