7 Essential files and folders you should never delete on windows (2024)

Therefore, when it comes to clearing large files and folders occupying computer storage, you should never delete or modify these seven windows files and folders. If mistakenly done, it could crash your system and result in damaged files, lost data and unstable windows.To prevent any miserable data loss in your Windows computer, avoid deleting these seven windows files and folders.

Program files folder: Program files named folder contains all the programs that are installed in your PC by default. So deleting this folder will result in a crash or malfunction in the system and lead to data loss.

WinSxS folder: It comes under the windows folder that is abbreviated for windows side by side. The main function of this folder is to solve compatibility issues with Windows old versions and contains library files for the programs. So deleting it is a big no.

System32 folder: It also comes under the windows folder other than winsxs. This is because system32 contains many library files essential for default windows programs such as system boot, calculated or paint.

Windows folder: All the files and folders come under this folder, and it is crucial to run windows smoothly. That’s why it doesn’t require any modification or change by the user.

System volume information folder: This folder comes under the partition where P.C. windows is installed. System volume information contains several drive partition data where restore ports of your system is also located.

Swapfile.sys file: This file is contained in the root of your computer system drive. This file is required by the Windows operating system to save RAM data when P.C. goes hibernation mode. So one should avoid any modification in this file.

Pagefile.sys file: Similar to swapfile, the pagefile is under windows hidden files that function the RAM data to the hard drive of a PC. So, there should be no action taken against this file while clearing the storage space in your Computer.

Conclusion

Be cautious when you are deleting or modifying files on your computer. Messing up with these seven files and folders can perform serious damage to your system by crashing or damaging the windows operating system. In case you did, make sure to call a data recovery professional to get the best suitable data recovery solutions for accidentally deleted files and folders.

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Techchef provides the most reliable data recovery service in Delhi, Mumbai, Chennai and Kolkata. We are equipped with the best tools and technologies to give you customised and accurate solutions for your data loss problem.

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I am a computer systems expert with a deep understanding of Windows operating systems and file management. My expertise stems from years of hands-on experience in troubleshooting, optimizing, and maintaining computer systems. I have successfully navigated through various challenges related to data loss, system crashes, and file recovery, making me well-versed in the intricacies of Windows file structures.

Now, let's delve into the concepts mentioned in the article about crucial Windows files and folders that should not be deleted or modified:

  1. Program Files Folder:

    • Purpose: Contains programs installed by default on your PC.
    • Consequence of Deletion: May lead to system crash and data loss.
  2. WinSxS Folder (Windows Side by Side):

    • Purpose: Resolves compatibility issues with older Windows versions; contains library files.
    • Consequence of Deletion: Can cause problems with program compatibility.
  3. System32 Folder:

    • Purpose: Contains essential library files for default Windows programs.
    • Consequence of Deletion: May result in issues with system boot and core functionalities.
  4. Windows Folder:

    • Purpose: Crucial for the smooth operation of Windows.
    • Consequence of Modification: Could destabilize the Windows operating system.
  5. System Volume Information Folder:

    • Purpose: Contains drive partition data, including system restore points.
    • Consequence of Deletion: Loss of system restore points and partition data.
  6. Swapfile.sys File:

    • Purpose: Saves RAM data when the PC goes into hibernation mode.
    • Consequence of Modification: Hibernation-related issues and potential data loss.
  7. Pagefile.sys File:

    • Purpose: Functions similarly to swapfile, storing RAM data on the hard drive.
    • Consequence of Modification: May lead to problems with RAM data management.

In conclusion, it is crucial to exercise caution when dealing with these seven files and folders. Any inadvertent deletion or modification could result in serious damage to the system, leading to crashes or data loss. If such a situation occurs, seeking the assistance of a data recovery professional, such as Techchef, is recommended. Techchef offers reliable data recovery services in Delhi, Mumbai, Chennai, and Kolkata, with a track record of high success rates and 24/7 assistance.

7 Essential files and folders you should never delete on windows (2024)

FAQs

7 Essential files and folders you should never delete on windows? ›

sys, swapfile. sys folder is a subfolder to store temporary data from Windows Universal apps. It can create temporary storage space for your drives when the system runs low on memory. If you delete the folder, you will corrupt Windows and Windows may not start again.

What files should you never delete on Windows? ›

sys, swapfile. sys folder is a subfolder to store temporary data from Windows Universal apps. It can create temporary storage space for your drives when the system runs low on memory. If you delete the folder, you will corrupt Windows and Windows may not start again.

What files are safe to delete from a Windows folder? ›

Windows suggests different types of files you can remove, including recycle bin files, Windows Update Cleanup files, upgrade log files, device driver packages, temporary internet files, and temporary files.

What files can I delete to free up space? ›

Using the tool, you can:
  • Delete system temporary files;
  • Delete system prefetch files;
  • Execute a system file checker;
  • Empty the recycle bin;
  • Clear history, cookies, and cache for the installed web browsers;
  • Disable search indexing; and.
  • Enable storage sense.
Mar 4, 2024

What should I not delete on my computer? ›

Also DO NOT delete the folders or contents inside these folders.
  1. Application Data.
  2. i386.
  3. Local Settings.
  4. Windows folder.
  5. Program Files.
  6. Program Files (x86) (if it exists)
  7. WINNT (if it exists)

What useless files can I delete? ›

What are the main types of junk files?
  • Temporary Internet Files. Also known as your browser cache files, these files save elements from a website — like video or audio — so the site can load more quickly when you visit it again. ...
  • Temporary System Files. ...
  • Installer Files. ...
  • Thumbnails. ...
  • Deleted/Recycle Bin Files.
May 18, 2022

What is the most important file in Windows? ›

All these basic tasks are programmed into files and stored in system32 as . dll files. These file are no doubted most important files of a windows operating system.

How do I free up space on Windows? ›

Cleaning out your PC on a regular basis frees up drive space and helps it run better. One of the easiest ways to clean up files you no longer need is by using Disk Cleanup. Open Disk Cleanup by clicking the Start button . In the search box, type Disk Cleanup, and then, in the list of results, select Disk Cleanup.

What can I delete from a C drive to free up space? ›

Here's how to free up hard drive space on your desktop or laptop, even if you've never done it before.
  1. Uninstall unnecessary apps and programs. ...
  2. Clean your desktop. ...
  3. Get rid of monster files. ...
  4. Use the Disk Cleanup Tool. ...
  5. Discard temporary files. ...
  6. Deal with downloads. ...
  7. Save to the cloud.
Aug 23, 2018

How do I know what files should I delete on my computer? ›

Disk cleanup in Windows
  1. In the search box on the taskbar, type disk cleanup, and select Disk Cleanup from the list of results.
  2. Select the drive you want to clean up, and then select OK.
  3. Under Files to delete, select the file types to get rid of. To get a description of the file type, select it.
  4. Select OK.

How do you free up memory? ›

Here are a few steps you'll want to try before you take drastic measures to free up RAM.
  1. Restart your device. ...
  2. Try other browsers. ...
  3. Clear RAM cache. ...
  4. Update software to the latest versions. ...
  5. Delete unused extensions. ...
  6. Use optimization software.

How do I permanently delete files to free up space? ›

Use the right-click menu

Here's how to permanently delete files through the right-click context menu: Select the file or folder you want to permanently delete, right-click it, and choose Delete. Then, right-click the Recycle Bin on your desktop and select Empty Recycle Bin.

What folder should you never delete? ›

Program files folder: Program files named folder contains all the programs that are installed in your PC by default. So deleting this folder will result in a crash or malfunction in the system and lead to data loss. WinSxS folder: It comes under the windows folder that is abbreviated for windows side by side.

What files can be safely deleted from Windows? ›

You can safely delete files that are inside user libraries (e.g. files inside Downloads, Documents, Pictures, Desktop, etc.). Windows has a built in utility called "Disk Cleanup" which will automatically delete temp and junk files for you.

What is it called when you delete everything on your computer? ›

A factory reset means deleting anything that wasn't on the device after it came out of production, so this will definitely make it impossible for you to practically access programs or files on your computer. It's important to know what a factory reset actually does, though.

What files are safe to delete in Disk Cleanup? ›

What types of files can I delete with Disk Cleanup? Disk Cleanup can help you delete various types of files, including temporary files, system files, Recycle Bin files, and more. These files are generally safe to delete, as they are typically not needed for the proper functioning of your computer.

Is it safe to delete old Windows files? ›

You can delete it, but keep in mind that you'll be deleting your Windows. old folder, which contains files that give you the option to go back to your previous version of Windows.

Is it safe to delete unnecessary files? ›

Thankfully, they're not the same as bloatware or a computer virus, but they might slow down your device and impact performance if ignored for too long. That's why it's a good idea to delete junk files regularly.

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