Look at this and see if it helps.
https://en.windowsnoticias.com/How-to-fix-error-65535-in-Windows-easily/
Can you provide an image of where you want to create a new folder? Does it offer New? See example image below.
Windows 11 File Explorer cannot create folders in multiple locations - File system error (65535)
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(227.2, 2%, 32%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ED%3C/text%3E%3C/svg%3E)
=D
185
Reputation points
Recently, I have been unable to create new folders using File Explorer. This previously worked.
When I try to create a folder, I receive this error:
Unable to create the folder 'New folder'. File system error (65535).
I have tried creating folders in other locations and receive the same error, so the problem is not limited to one directory. I have attached a screenshot of the error.
System details:
Windows 11 Pro, version 25H2
OS build: 26200.9457
64-bit operating system
What could cause this error, and how can I restore the ability to create folders?
Windows for home | Other | Files, folders, and storage
2 answers
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(281.6, 82%, 37%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EEN%3C/text%3E%3C/svg%3E)
Emma1-N 13,700 Reputation points Microsoft External Staff Moderator2026-10-08T03:44:26.9366667+00:00 Welcome =D,
Thank you for providing the screenshot and Windows build information. Since the same “File system error (65535)” occurs when creating folders in multiple locations, I suggest first checking the Windows system files rather than focusing on permissions for one particular folder.
Before proceeding, could you confirm two things?
- Can you create a folder directly under a simple local location such as
C:\Users\Public\Documents? - Can you create a folder from Command Prompt by running
mkdir "%USERPROFILE%\Desktop\TestFolder"?
Also, please repair the Windows system files:
- Search for Command Prompt, select Run as administrator, and approve the prompt.
- Run:
DISM.exe /Online /Cleanup-image /Restorehealth - After DISM completes successfully, run:
sfc /scannow - Restart the computer when the scan finishes, then test New > Folder in File Explorer again.
Looking forward to your update.
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Emma1-N 13,700 Reputation points Microsoft External Staff Moderator
2026-10-09T00:05:33.5366667+00:00 Hello =D,
I just wanted to check if my previous response addressed your question correctly. If there is anything I may have misunderstood, I would truly appreciate it if you could provide a bit more detail to help me better understand your needs.
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=D 185 Reputation points
2026-10-09T18:41:10.83+00:00 Hello Emma,
Thank you for your response. The folder-creation error has since cleared up, but I do not know what caused it or why it stopped occurring.
One potentially relevant detail is that I regularly pause OneDrive syncing because File Explorer becomes extremely slow (insufferably slow) while syncing is active. Creating a folder can leave Explorer unresponsive for approximately 1–10 seconds, and creating a Word document can cause delays lasting several seconds to tens of seconds.
Pausing OneDrive improves responsiveness to what I'd call just normal, but I have also noticed unusual errors while it is paused, including errors when renaming Word documents.
I therefore suspect OneDrive may be involved, although I cannot confirm that it caused the “File system error (65535).” The recurring performance problems remain even though folder creation is working again.
For comparison, I experience none of these issues with Apple’s iCloud Drive on my Mac. I create a folder, and the folder appears. No noticeable lag, no daily ritual of pausing synchronization, and no troubleshooting project attached to a routine file operation. A remarkably useful feature.
Yeah, anyway, is there a specific log or diagnostic that could help determine whether OneDrive is contributing to these delays and file-operation errors?
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Emma1-N 13,700 Reputation points Microsoft External Staff Moderator
2026-10-13T04:55:49.2166667+00:00 Hello =D,
Thank you for the update. I’m glad the original folder-creation error has cleared.
Since File Explorer becomes noticeably faster when OneDrive is paused, please test creating and renaming a folder in a location outside OneDrive, such as
C:\Temp, both while OneDrive is syncing and while it is paused.If the slowdown occurs only inside OneDrive locations, that will help narrow down the issue. I would not attribute error 65535 specifically to OneDrive without further evidence.
Please let me know the result of this comparison.
Sign in to comment - Can you create a folder directly under a simple local location such as