Windows is slow to delete files?
Why does it take so long to delete files?
Get possible reasons and corresponding solutions from this post.
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What to Do When You Cant Delete Files From External Hard Drive
Solution 1.
In File Explorer, right-poke the file that cannot be deleted and clickProperties.
Move on to theSecuritytab, then click theEditbutton.

In the new window, clickAdd.
TypeAuthenticated Usersin the text box and clickOK.
Next, double-check theAuthenticated Usersname is selected, then check theAllowbox next toFull control.

Now, you might attempt to delete the file again and test whether you might delete it successfully.
Solution 2.
How to remove the write-protected attribute?

Just follow the steps below.
In the Windows search box, typediskpartand then right-hit it from the best match result to selectRun as administrator.
In the command line window, jot down the following commands.

How to delete duplicate files on a USB flash drive?
What if important USB files are deleted by mistake?
Read this post to find out the answers.
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Solution 3.
To repair the file system, it’s possible for you to trigger the error-checking tool.
In File Explorer, move on to theThis PCsection.

In the right panel, find and right-snag the external hard drive, then selectPropertiesfrom the context menu.
Go to theToolstab, and then click theCheckbutton to detect and fix file system errors.
Solution 4. you’ve got the option to format an external hard drive from File Explorer.
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MiniTool Power Data Recovery FreeClick to Download100%Clean & Safe
Lost files after downgrading Windows?
This post offers you the best ways to recover data after Windows downgrade.
In theThis PCsection, right-tap the external hard drive to selectFormat.

Download, install, and run MiniTool Partition Wizard.
Click theApplybutton in the lower left corner.
Is it possible to delete/remove unallocated space in Windows 10?

The answer is Yes.
This guide will show you how to delete unallocated space.
Before formatting the drive, you better recover its data with MiniTool Power Data Recovery.
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Should you have any questions about MiniTool software, like contact us via[email protected].