将文件从 Windows 11 或 Windows 10 电脑复制(error while copying a file from your Windows 11 or Windows 10 PC)到网络位置时出现 0x8007003b错误?可能是您的目标磁盘的文件格式与您的文件不兼容,或者您的 PC 的防火墙阻止了您的文件传输。我们将向您展示在计算机上解决此问题的多种方法。
您在复制文件时也可能会遇到问题,因为您的目标磁盘存在文件系统错误、您的防病毒软件认为您的文件是潜在威胁、您的Windows系统文件已损坏等等。

1.更改目标磁盘的文件格式(File Format)
如果您尝试传输大于 4 GB 的文件,请确保目标磁盘不使用FAT32格式。这是因为FAT32格式仅支持最大 4 GB 的文件;磁盘不会接受大于该大小的文件,从而导致传输失败。
您可以通过检查磁盘的文件格式来验证是否是这种情况,如下所示:
- 按Windows键打开“开始”(Start)菜单,找到“这台电脑”,然后启动该项目。
- 右键单击您的磁盘驱动器并选择属性。
- 访问“属性”(Properties)中的“常规”(General)选项卡。
- 检查文件(File)系统旁边的值。如果该值显示FAT32,则您的磁盘无法支持大于 4 GB 的单个文件。

如果必须在磁盘上保存大于 4 GB 的文件,请压缩文件(compress your file)以使文件大小低于允许的限制。您可以使用 7-Zip 等免费文件归档工具来压缩文件。
- 在您的 PC 上下载并安装免费的7-Zip工具。
- 右键单击要传输的文件,然后选择显示(Show)更多选项 > 7-Zip > Add到存档。
- 在压缩(Compression)级别下拉菜单中选择 9 – Ultra 。

- 选择底部的“确定”按钮来创建存档。
- 将新创建的存档传输到目标网络位置。
如果您不想压缩文件,可以使目标磁盘使用支持超过 4 GB 的文件大小的文件格式。(make your target disk use a file format)NTFS就是这样一种格式,你可以将它用于你的目标磁盘。请注意,当您更改磁盘的文件格式时,您将丢失磁盘上存储的所有现有数据。在继续之前,请将所需文件备份到设备上的安全位置。
- 在Windows(Windows)计算机上打开此电脑。
- 右键单击您的磁盘驱动器并选择“格式化”(Format)。
- 从文件(File)系统下拉菜单中选择NTFS 。

- 启用“快速格式化”(Quick Format)选项并选择“开始”(Start)。
格式化磁盘后,您可以在磁盘上存储大于 4 GB 的文件。
2.修复磁盘的文件系统(File System)错误
传输文件时出现错误 0x8007003b 的另一个原因是目标磁盘存在文件系统问题。出现这些问题的原因有多种,解决这些问题的一种方法是使用Windows 内置的磁盘检查器(use Windows’ built-in disk checker)。
Windows包含一个磁盘检查器工具,可用于查找并修复磁盘上的所有文件系统问题。
- 在您的计算机上启动此电脑。
- 右键单击您的磁盘驱动器并选择属性。
- 访问“工具”(Tools)选项卡并在“错误检查”部分中选择(Error)“检查”(Check)。

- 选择扫描(Scan)并修复驱动器以检测并解决磁盘问题。
3. 检查您的Windows PC 是否存在病毒(Viruses)和恶意软件(Malware)
病毒或恶意软件可能会阻碍您的文件复制任务,有时会导致传输失败。在这种情况下,您可以使用 Windows 内置的防病毒工具来查找并删除计算机中的所有威胁(find and remove all the threats from your machine)。
- 打开“开始”(Start)菜单,找到“Windows 安全”(Windows Security),然后启动该应用程序。
- (Select Virus)在应用程序中
选择病毒和威胁防护。
- 在下一页上
选择扫描选项。(Scan)
- 选择完整(Select Full)扫描,然后选择底部的立即扫描。(Scan)

- 允许您的防病毒软件扫描您的整个电脑是否存在任何威胁。
- 重新启动您的电脑。
4.通过禁用防病毒软件(Antivirus)和防火墙来(Firewall)修复(Fix)意外的网络(Unexpected Network Error)错误
有时,您的防病毒程序或防火墙会将您的文件或连接检测为潜在威胁,从而阻止您访问该项目(blocking your access to that item)。误报报告并不罕见,您的文件传输任务可能会出现这种情况。
在这种情况下,请暂时关闭防病毒和防火墙工具来解决您的问题。复制文件后,您可以重新打开这些项目。
- 在您的 PC 上打开 Windows 安全性。
- (Select Virus)在应用程序中
选择病毒和威胁防护。
- (Choose Manage)选择病毒和威胁防护设置标题下的(Virus)管理设置。
- 禁用实时保护开关。

- 在用户帐户控制(User Account Control)提示中选择是(Yes)。
- 首先在左侧边栏中
选择防火墙(Firewall)和网络保护,开始禁用防火墙。
- 选择(Select)标有(活动)的网络。
- 关闭Microsoft Defender 防火墙(Microsoft Defender Firewall)开关。这将关闭Windows防火墙。

- 在用户帐户控制(User Account Control)提示中选择是(Yes)。
- 开始复制您的文件。
5.修复Windows损坏的系统文件
Windows 的错误核心文件可能会导致许多系统功能无法工作,包括文件复制功能。这些核心文件会因各种原因而损坏,包括病毒和恶意软件。
修复这些文件的一种方法是使用 Windows 内置的 SFC(系统文件检查器)工具(use Windows’ built-in SFC (System File Checker) tool)。该工具会自动检测系统上有问题的文件并修复这些文件。
- 打开“开始”(Start),找到“命令提示符”(Command Prompt),然后选择“以管理员身份运行”(Run)。
- (Choose Yes)在用户帐户控制提示中(User Account Control)选择是。
- 在命令提示符(Command Prompt)窗口中键入以下命令,然后按 Enter:
DISM.exe /Online /Cleanup-image /Restorehealth

- 键入以下命令并按 Enter:sfc /scannow

- 等待(Wait)该工具扫描并修复系统上损坏的文件。
6.修复使用还原点(Restore)复制文件(Fix Error Copying Files)时的
错误
如果您在对电脑进行特定更改后开始看到 0x8007003b 错误,则该更改可能导致了该问题。此外,您安装的应用程序可能对您的系统进行了一些更改,其中之一可能会导致您的问题。
在这种情况下,您可以将系统回滚到过去的某个时间点(roll back your system to a point in the past),撤消更改并修复由这些更改引起的问题。
- 打开“开始”(Start),找到“恢复”(Recovery),然后在搜索结果中选择该项目。
- (Choose Open System Restore)在下一页上
选择“打开系统还原” 。
- (Select Next)在系统还原的第一个屏幕上
选择下一步。
- 选择列表中最新的还原点,然后选择“下一步”(Next)。

- 选择“完成”(Finish)开始恢复您的电脑。
解决Windows上的网络文件复制错误的(Network File Copy Error)多种方法(Ways)
Windows错误代码 0x8007003b 阻止您将文件复制到预期的网络位置。许多项目都可能导致此问题。如果多次尝试后仍无法复制文件,请使用上述方法解决所有问题。
然后,您可以将所有文件传输到您选择的网络驱动器,不会出现错误。
6 Ways to Fix an Error 0x8007003b on Windows 11 and 10
Getting a 0x8007003b error while copying a file from your Windows 11 or Windows 10 PC to a network location? Chances are your target disk’s file format is incompatible with your file, or your PC’s firewall has blocked your file transfer. We’ll show you multiple ways to fix this problem on your computer.
You can also have trouble copying your file because your target disk has file system errors, your antivirus thinks your file is a potential threat, your Windows system files are corrupt, and more.

1. Change Your Target Disk’s File Format
If you’re trying to transfer a file larger than 4 GB, ensure the target disk doesn’t use FAT32 format. This is because the FAT32 format only supports files up to 4 GB; the disk won’t accept files larger than that, causing your transfer to fail.
You can verify if that’s the case by checking the disk’s file format as follows:
- Open the Start menu by pressing the Windows key, find This PC, and launch the item.
- Right-click your disk drive and choose Properties.
- Access the General tab in Properties.
- Check the value next to File system. If the value says FAT32, your disk can’t support a single file larger than 4 GB.

If you have to save a file larger than 4 GB on your disk, compress your file to bring the file size under the allowed limit. You can use a free file archiver tool like 7-Zip to compress your files.
- Download and install the free 7-Zip tool on your PC.
- Right-click the file you want to transfer and choose Show more options > 7-Zip > Add to archive.
- Select 9 – Ultra in the Compression level drop-down menu.

- Choose the OK button at the bottom to create your archive.
- Transfer your newly-created archive to your target network location.
If you don’t wish to compress your file, you can make your target disk use a file format that supports file sizes over 4 GB. NTFS is such a format, and you can use it for your target disk. Note that you’ll lose all the existing data stored on your disk when you change your disk’s file format. Back up the required files to a safe location on your device before proceeding.
- Open This PC on your Windows computer.
- Right-click your disk drive and choose Format.
- Select NTFS from the File system drop-down menu.

- Enable the Quick Format option and select Start.
After formatting the disk, you can store files larger than 4 GB on your disk.
2. Fix Your Disk’s File System Errors
Another reason you get an error 0x8007003b while transferring your files is because your destination disk has file system issues. These problems occur for various reasons, and one way to fix them is to use Windows’ built-in disk checker.
Windows includes a disk checker tool that you can use to find and fix all the file system problems on your disks.
- Launch This PC on your computer.
- Right-click your disk drive and choose Properties.
- Access the Tools tab and select Check in the Error checking section.

- Choose Scan and repair drive to detect and resolve issues with your disk.
3. Check Your Windows PC for Viruses and Malware
A virus or malware can cause hindrance in your file copying tasks, sometimes causing your transfers to fail. In this case, you can use Windows’ built-in antivirus tool to find and remove all the threats from your machine.
- Open the Start menu, find Windows Security, and launch the app.
- Select Virus & threat protection in the app.
- Choose Scan options on the following page.
- Select Full scan and choose Scan now at the bottom.

- Allow your antivirus to scan your entire PC for any threats.
- Reboot your PC.
4. Fix an Unexpected Network Error by Disabling Your Antivirus and Firewall
Sometimes, your antivirus program or firewall detects your file or connection as a potential threat, blocking your access to that item. False-positive reports aren’t uncommon, which may be the case with your file transfer task.
In this case, temporarily turn off your antivirus and firewall tools to resolve your issue. You can turn these items back on when you’ve copied your files.
- Open Windows Security on your PC.
- Select Virus & threat protection in the app.
- Choose Manage settings under the Virus & threat protection settings header.
- Disable the Real-time protection toggle.

- Select Yes in the User Account Control prompt.
- Begin disabling the firewall by first choosing Firewall & network protection in the left sidebar.
- Select the network that says (active).
- Turn off the Microsoft Defender Firewall toggle. This will turn off the Windows firewall.

- Select Yes in the User Account Control prompt.
- Begin copying your file.
5. Fix Windows’ Corrupted System Files
Windows’ faulty core files can cause many system features not to work, including the file copying feature. These core files go corrupt for various reasons, including viruses and malware.
One way to fix those files is to use Windows’ built-in SFC (System File Checker) tool. This tool automatically detects the faulty files on your system and fixes those files.
- Open Start, find Command Prompt, and select Run as administrator.
- Choose Yes in the User Account Control prompt.
- Type the following command on the Command Prompt window and press Enter:
DISM.exe /Online /Cleanup-image /Restorehealth

- Type the following command and press Enter: sfc /scannow

- Wait while the tool scans and fixes corrupt files on your system.
6. Fix Error Copying Files by Using a Restore Point
If you started seeing a 0x8007003b error after making a specific change to your PC, that change might have caused the issue. Additionally, your installed apps may have made some changes to your system, one of which may be causing your problem.
In this case, you can roll back your system to a point in the past, undoing your changes and fixing the issue caused by those changes.
- Open Start, find Recovery, and select the item in the search results.
- Choose Open System Restore on the following page.
- Select Next on System Restore’s first screen.
- Choose the most recent restore point on the list and select Next.

- Select Finish to start restoring your PC.
Many Ways to Resolve a Network File Copy Error on Windows
Windows error code 0x8007003b prevents you from copying your files to your intended network location. Many items can cause this problem. If you can’t copy your files despite multiple attempts, use the above methods to resolve all issues.
You can then transfer all your files to your chosen network drive without errors.