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27 July 2023  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 system, frequently deleting and writing files will easily generate disk fragmentation. If these disk fragments are not cleaned up regularly, the running speed of the computer will slow down, the startup time will be longer, and in severe cases, the life of the hard disk may be shortened. Therefore, in order to improve the performance of the system and make the system run more smoothly, it is recommended that you 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?
In fact, SSDs do not need to be defragmented for three reasons.

1. The reading time of each block of solid-state hard disk is basically constant, and its performance mainly depends on the internal main control chip and flash memory particles. Using traditional defragmentation programs does not improve computer performance.

2. The erasing and writing times of solid-state hard drives are limited. Disk defragmentation is a process of data transfer, which will reduce the life of the solid-state drive. Unnecessary data erasure should be avoided as much as possible.

3. Solid-state hard disk has its unique “finishing” function. The TRIM function of solid-state drives is equivalent to the function of disk defragmentation to a certain extent.

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 specific operation steps are as follows:
Step 1: Run the Windows 7 device, and then find the (Start)-(All Programs)-(Accessories)-(System Tools)-(Disk Defragmenter) option.
Open Disk Defragmenter
Step 2: Next, select the drive that needs to be optimized, and then click the (Analyze Disk) button in the disk defragmentation program interface to start analyzing the current status of the disk.
analyze disk
Step 3: After the disk analysis is completed, the disk defragmentation can be carried out. Generally, defragmentation is not required if the fragmentation is below 10%. (Note: In order to describe the whole process of defragmentation here, continue to perform the defragmentation operation.) Select the disk that needs to be defragmented, and then click the (Disk Defragmentation) button.
defragmentation process
Step 4: After the disk defragmentation is completed, it will show that the fragmentation is 0%. If you need to defragment other disks, continue the above operation process. If you have completed the defragmentation operation, just click the (Close) button ,Very convenient.
defragment disk
The above is the complete operation process of disk defragmentation for Windows 7, although disk defragmentation can help improve the running speed of the computer. After defragmentation, if you find that you have lost data, it may be difficult to recover that data at this time. Because disk defragmentation is a process of data transfer, it will lead to data overwriting. Therefore, it is recommended that you confirm whether there is any lost data in the disk that needs to be recovered before defragmentation. It is recommended not to defragment the disk that needs to recover data.
In addition, if you accidentally delete or clear the file data, you can use professional data recovery software to recover the lost data. Here we recommend you to use Renee Undeleter to operate. Let’s learn more about this software and how to use it below. Bar.

II. Use Renee Undeleter to recover lost data

1. What is Renee Undeleter?

Renee Undeleter It is a software specially used to restore system data files. When you accidentally delete important files, empty the recycle bin, or format the disk/storage, you can use this tool to retrieve the lost data. The software covers four functional modules, including file recovery, format recovery, partition recovery and image creation. Therefore, it can help you solve all possible data loss problems that may occur during system use in an all-round way, which is very convenient.
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2. How to recover lost data with Renee Undeleter?

Restoring data with Renee Undeleter is very simple, the specific steps are as follows:
Step 1: Download, install and run Renee Undeleter (do not install it on the disk with lost data), and select the (File Recovery) option in the main interface.
Select file recovery options
Step 2: Next, select the partition to scan for recovery, which is the original storage location of the target files. Select Finish and click (Next).
Select partitions to scan
Step 3: After that, select (Quick Scan) mode on the scan mode interface, and then click (Next) to start the scan command. If the file you need is still not recovered after the quick scan operation, it is recommended to select (Deep Scan) again to execute the command to fully scan the partition in this interface. Please be patient as this mode will take a long time.
Execute a quick scan command
Step 4: There will be an interface to preview the scanning results, you only need to 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.
restore file interface