Remove Double Blue Arrows on Icons: Fix Guide

Double blue arrows on Windows icons mean the file or folder is compressed to save disk space. You can remove them by unchecking “Compress contents to save disk space” in the file’s Properties, or by disabling NTFS compression for the entire drive. This guide explains both methods, why the arrows appear, and how to prevent them from coming back.

What the Double Blue Arrows Mean

In Windows, a file or folder with two small blue arrows pointing inward (like a blue overlay on the bottom-right corner of the icon) indicates that the item is compressed using NTFS compression. This is a built-in feature of the NTFS file system that reduces the amount of disk space a file uses by compressing its data on the fly. It is different from zipping a file into a .zip archive; NTFS compression is transparent—the file still opens normally, but Windows decompresses it in the background when you access it.

The arrows appear only when the file or folder has the “Compress contents to save disk space” attribute enabled. This attribute can be set on individual files, folders, or an entire drive. When set on a folder, all new files placed inside it are automatically compressed too.

Why You Might Want to Remove the Arrows

While NTFS compression can save space, it often causes confusion. Many users see the arrows and think something is wrong or that the file is corrupted. Others notice a performance hit: compressed files take extra CPU time to decompress when opened, which can slow down large files or frequently accessed data. Also, compressed files cannot be encrypted with EFS (Encrypting File System) at the same time, and some programs (especially older ones) may have trouble reading them. Removing the arrows is purely cosmetic if you don’t need the space savings, but it also restores full-speed access and eliminates any compatibility concerns.

Method 1: Uncompress a Single File or Folder

The simplest way to remove the blue arrows from one item is to turn off the compression attribute directly. Here are the steps:

1. Right-click the file or folder with the blue arrows and select Properties.
2. In the Properties window, click the Advanced button in the General tab.
3. In the Advanced Attributes window, uncheck the box labeled “Compress contents to save disk space”.
4. Click OK on both windows.
5. If you are unchecking a folder, Windows will ask if you want to apply the change to this folder only or to this folder, subfolders, and files. Choose the second option to remove the arrows from everything inside.

After this, the blue arrows should disappear immediately. If they don’t, refresh the folder by pressing F5 or restarting File Explorer (via Task Manager).

Method 2: Disable Compression for an Entire Drive

If many files on a drive show the arrows, it’s likely the whole drive was set to compress. To turn that off:

1. Open File Explorer and right-click the drive (e.g., C:) in the left sidebar.
2. Select Properties.
3. In the General tab, uncheck “Compress this drive to save disk space”.
4. Click Apply. Windows will ask if you want to apply the change to the drive only or to all subfolders and files. Choose the latter for a full cleanup.
5. Windows will then decompress every file on the drive. This can take a long time (minutes to hours) depending on the drive size and speed. You can continue using the computer, but it may be slower during the process.

Note that this only affects NTFS compression, not other types of compression like Windows’ CompactOS (which uses a different mechanism and does not show blue arrows).

Method 3: Use Command Prompt to Uncompress

For advanced users, the command-line tool compact can remove the compression attribute faster, especially for many files. Open Command Prompt as Administrator and run:

compact /u /s:"C:\path\to\folder"

This uncompresses all files in the specified folder and subfolders. To uncompress an entire drive, use compact /u /s:C:\ (adjust the drive letter). The /u flag means uncompress, and /s processes subfolders. You can also use compact /u /i to ignore errors and keep going.

Why the Arrows Keep Coming Back

Sometimes you remove the arrows, but they reappear later. This usually happens because:

• The file is inside a folder that still has the compression attribute set. New files placed in a compressed folder inherit the attribute. You must uncompress the parent folder (and all subfolders) to stop this.
• You are using a backup or sync tool that restores the attribute from a previous state.
• You re-enabled compression on the drive without realizing it (e.g., via Disk Cleanup’s “Compress old files” option).

To permanently stop it, ensure the top-level folder and the drive itself have the compression attribute unchecked. Also check the “Compress old files” setting in Disk Cleanup—it can recompress files older than a certain number of days.

Common Misconceptions

One common myth is that the blue arrows mean the file is a shortcut or that it’s been moved to OneDrive. That’s not true—shortcuts have a small arrow overlay in the bottom-left corner, and OneDrive files have green checkmarks or cloud icons. The blue double arrow is exclusively NTFS compression. Another misconception is that removing the arrows will delete the file or reduce its quality. It doesn’t; it simply decompresses the file back to its original size. The file content remains identical.

Frequently Asked Questions

Will removing compression delete my files?
No. Uncompressing a file only removes the compression attribute; the data is fully intact. It may take up more disk space, but nothing is lost.

Why don’t I see the blue arrows even though the drive is compressed?
Windows hides the overlay for some system files or if the icon cache is stale. You can check the attribute by right-clicking a file and looking at the Advanced button. Also, if you have disabled overlay icons via registry tweaks, they won’t show.

Does NTFS compression affect performance?
Yes, slightly. Compressing and decompressing uses CPU cycles. For large files (like videos or databases), the overhead can be noticeable. For small text files, it’s usually negligible.

Can I use NTFS compression on an SSD?
Technically yes, but it’s not recommended. SSDs are fast, but compression adds unnecessary CPU load and can reduce the drive’s lifespan due to extra write operations. The space savings are often minimal for already-compressed file types like JPEG or MP4.

How do I know if a file is compressed without the arrows?
Right-click the file, select Properties, then Advanced. If “Compress contents to save disk space” is checked, it’s compressed. You can also use the command compact /q filename in Command Prompt to see the compression state.

Will uncompressing a folder with thousands of files take a long time?
Yes, it can take a while. The time depends on the number of files and the speed of your storage. You can let it run in the background, but avoid turning off the computer during the process.

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