修复 USB 错误代码 52 Windows 无法验证数字签名： ^{(Fix USB Error Code 52 Windows cannot verify the digital signature: )}如果您最近安装了Windows 更新^{(Windows Updates)}或升级了 Windows，那么您的USB端口可能无法识别连接到它们的任何硬件。实际上，如果您进一步挖掘，您会在设备管理器^{(Device Manager)}中发现以下错误消息：

Windows 无法验证此设备所需驱动程序的数字签名。最近的硬件或软件更改可能安装了签名不正确或损坏的文件，或者可能是来自未知来源的恶意软件。（代码 52）^{(Windows cannot verify the digital signature for the drivers required for this device. A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source. (Code 52))}

错误代码 52表示驱动程序故障，在设备管理器中，您会在每个^{(Error Code 52)}USB图标旁边看到一个黄色感叹号。好吧，这个错误没有特别的原因，但有很多原因，例如损坏的驱动程序^{(Corrupted Drivers)}、安全^(Secure)启动、完整性^(Integrity)检查、USB过滤器有问题等。所以不要浪费任何时间，让我们看看如何实际修复 USB 错误Code 52 ^{(Fix USB Error Code 52)} Windows无法在下面列出的故障排除指南的帮助下验证数字签名。

修复 USB 错误代码 52 ^{(Fix USB Error Code 52)} Windows无法验证数字签名

确保 创建一个还原点^{(create a restore point)}，以防万一出现问题。

方法一：删除 USB UpperFilter 和 LowerFilter 注册表项^{(Method 1: Delete USB UpperFilter and LowerFilter Registry Entries)}

注意：^(Note:) 备份注册表^{(Backup the registry)}Â 以防万一出现问题。

1.按 Windows 键 + R 然后键入regedit并按Enter打开注册表编辑器^{(Registry Editor)}。

2.导航到以下注册表^{(Registry Key)}项：

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{36FC9E60-C465-11CF-8056-444553540000}

3.确保选择{36FC9E60-C465-11CF-8056-444553540000}然后在右侧窗格中找到UpperFilters 和 LowerFilters。^{(UpperFilters and LowerFilters.)}

4.右键单击它们并选择删除。^(Delete.)

5.重新启动您的 PC 以保存更改。

方法2：运行系统还原^{(Method 2: Run System Restore)}

1.按 Windows 键 + R 并键入“ sysdm.cpl ”，然后按 Enter。

2.选择系统保护^{(System Protection)}选项卡，然后选择系统还原。^{( System Restore.)}

3.单击下一步并选择所需的系统还原点^{(System Restore point)}。

4.按照屏幕提示完成系统还原。并查看您是否能够 修复 USB 错误代码 52 Windows 无法验证数字签名^{(Fix USB Error Code 52 Windows cannot verify the digital signature)}，如果不能，则继续使用下面列出的方法。

方法 3：禁用安全启动^{(Method 3: Disable Secure Boot)}

1.重新启动您的PC，然后根据您的PC点击F2或DEL以打开^(DEL)Boot Setup。

2.找到Secure Boot设置，如果可能，将其设置为Enabled。此选项通常位于“安全^(Security)”选项卡、“引导^(Boot)”选项卡或“身份验证^{(Authentication)}”选项卡中。

#WARNING:禁用安全启动^{(Secure Boot)}后，如果不将 PC 恢复到出厂状态，可能很难重新激活安全启动。^{(Secure Boot)}

3.重新启动您的 PC 并查看您是否能够 修复 USB 错误代码 52 Windows 无法验证数字签名。^{(Fix USB Error Code 52 Windows cannot verify the digital signature.)}

方法 4：禁用驱动程序签名强制^{(Method 4: Disable Driver Signature Enforcement)}

对于Windows 10用户，解释Windows启动过程 3 次以启动到恢复模式，否则您可以尝试以下操作：

1.转到您看到上述错误消息的登录^(Login)屏幕，然后单击电源按钮^{(Power button)}，然后按住Shift并单击重新启动^(Restart)（同时按住 shift 按钮）。

2.确保在看到“高级恢复选项”菜单^{(Advanced Recovery Options menu.)}之前不要松开Shift按钮。^(Shift)

3.现在导航^(Navigate)到高级恢复^{(Advanced Recovery)} 选项^(Options)菜单中的以下内容：

Troubleshoot > Advanced options > Startup settings > Restart

4.单击重新启动后，您的 PC 将重新启动，您将看到一个带有选项列表的蓝屏，请确保按“禁用驱动程序签名强制执行”选项旁边的数字键。^{(Disable driver signature enforcement.)}——

5.现在Windows将再次启动，一旦登录到Windows按Windows Key + R然后键入devmgmt.msc并按Enter打开设备管理器^{(Device Manager)}。

6.右键单击有问题的设备（旁边有一个黄色感叹号），然后选择更新驱动程序。^{( Update Driver.)}

7.选择“自动搜索更新的驱动程序软件”。^{(Search automatically for updated driver software.)}——

8.对设备管理器^{(Device Manager)}中列出的每个有问题的设备重复上述过程。

9.重新启动您的 PC 以保存更改并查看您是否能够 修复 USB 错误代码 52 Windows 无法验证数字签名。^{(Fix USB Error Code 52 Windows cannot verify the digital signature.)}

方法 5：卸载有问题的设备^{(Method 5: Uninstall Problematic devices)}

1.按 Windows 键 + R 然后键入devmgmt.msc并按 Enter。

2.右键单击每个有问题的设备^{(each of problematic device)}（旁边的黄色感叹号）并选择卸载。^(Uninstall.)

3.单击Yes/OK继续卸载。

4.重新启动您的 PC 以保存更改。

Method 6: Delete usb*.sys Files

1.通过此处^(here.)列出的任何一种方法获得文件 C:\Windows\system32\drivers\usbehci.sys 和 C:\Windows\system32\drivers\usbhub.sys 的所有权。

2.将usbehci.sys和usbhub.sys^{(usbehci.sys and usbhub.sys)}文件重命名为usbehciold.sys & usbhubold.sys。

3.按 Windows 键 + R 然后键入devmgmt.msc并按 Enter。

4.展开通用串行总线控制器^{(Universal Serial Bus Controllers)}，然后右键单击标准增强型 PCI 到 USB 主机控制器^{(Standard Enhanced PCI to USB Host Controller)}并选择卸载。^(Uninstall.)

5.重新启动您的PC，新的驱动程序将自动安装。

方法 7：运行 CHKDSK 和 SFC^{(Method 7: Run CHKDSK and SFC)}

1.按Windows Key + X然后单击命令提示符^{(Command Prompt)}（管理员^(Admin)）。

2.现在在cmd中输入以下内容并回车：

Sfc /scannow
sfc /scannow /offbootdir=c:\ /offwindir=c:\windows

3.等待上述过程完成，完成后重新启动您的电脑。

4.接下来，从此处运行 CHKDSK 使用检查磁盘实用程序 (CHKDSK) 修复文件系统错误^{(Fix File System Errors with Check Disk Utility(CHKDSK))}。^{(Fix File System Errors with Check Disk Utility(CHKDSK).)}

5.让上述过程完成并再次重新启动您的 PC 以保存更改。

看看您是否能够修复 USB 错误代码 52 Windows 无法验证数字签名， ^{( Fix USB Error Code 52 Windows cannot verify the digital signature, )}如果不能，请按照下一个方法。

方法 8：禁用完整性检查^{(Method 8: Disable Integrity Checks)}

1.按Windows Key + X然后选择命令提示符（管理员）。^{(Command Prompt (Admin).)}

2.在cmd中输入^(Enter)以下命令并在每个命令后按Enter：

bcdedit -set 加载选项 DDISABLE_INTEGRITY_CHECKS^{(bcdedit -set loadoptions DDISABLE_INTEGRITY_CHECKS)}

bcdedit -set TESTSIGNING ON

3.如果上述命令不起作用，请尝试以下操作：

bcdedit /deletevalue loadoptions

bcdedit -set TESTSIGNING OFF

4.重新启动您的 PC 以保存更改。

为你推荐：^{(Recommended for you:)}

• 修复 USB 驱动器不显示文件和文件夹^{(Fix USB Drive not showing files and folders)}
• 修复 DPC 看门狗违反 BSOD 错误
• 如何自行修复屏幕分辨率更改问题^{(How To Fix Screen Resolution changes by itself issue)}
• 修复 Windows 无法安装到驱动器 0^{(Fix Windows Cannot Be Installed to Drive 0)}

就是这样，您已成功修复 USB 错误代码 52 Windows 无法验证数字签名^{(Fix USB Error Code 52 Windows cannot verify the digital signature)}，但如果您对本指南仍有任何疑问，请随时在评论部分询问。

Fix USB Error Code 52 Windows cannot verify the digital signature

Fix USB Error Code 52 Windows cannot verify the digital signature: If you have recently installed Windows Updates or upgraded Windows then it’s possible that your USB ports will not recognize any hardware that is connected to them. In fact, if you will dig further you will find out the following error message in Device Manager:

Windows cannot verify the digital signature for the drivers required for this device. A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source. (Code 52)

Error Code 52 indicates a driver failure and in device manager, you will see a yellow exclamation mark next to each USB icon. Well, there is no particular cause for this error but a number of reasons are responsible such as Corrupted Drivers, Secure boot, Integrity check, problematic filters for USB etc. So without wasting any time let’s see how to actually Fix USB Error Code 52 Windows cannot verify the digital signature with the help of below-listed troubleshooting guide.

Fix USB Error Code 52 Windows cannot verify the digital signature

Make sure to create a restore point just in case something goes wrong.

Method 1: Delete USB UpperFilter and LowerFilter Registry Entries

Note: Backup the registry just in case something goes wrong.

1.Press Windows Key + R then type regedit and hit Enter to open Registry Editor.

2.Navigate to the following the Registry Key:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{36FC9E60-C465-11CF-8056-444553540000}

3.Make sure to select {36FC9E60-C465-11CF-8056-444553540000} and then in the right window pane find UpperFilters and LowerFilters.

4.Right-click on each of them and select Delete.

5.Reboot your PC to save changes.

Method 2: Run System Restore

1.Press Windows Key + R and type”sysdm.cpl” then hit enter.

2.Select System Protection tab and choose System Restore.

3.Click Next and choose the desired System Restore point.

4.Follow the on-screen instruction to complete system restore. And see if you are able to Fix USB Error Code 52 Windows cannot verify the digital signature, if not then continue with the below-listed methods.

Method 3: Disable Secure Boot

1.Restart your PC and tap F2 or DEL depending upon your PC to open Boot Setup.

2.Find the Secure Boot setting, and if possible, set it to Enabled. This option is usually in either the Security tab, the Boot tab, or the Authentication tab.

#WARNING: After disabling Secure Boot it may be difficult to re-activate Secure Boot without restoring your PC to the factory state.

3.Restart your PC and see if you’re able to Fix USB Error Code 52 Windows cannot verify the digital signature.

Method 4: Disable Driver Signature Enforcement

For Windows 10 user’s, interpret the Windows booting process 3 times to boot into recovery mode or else you could try the following:

1.Go to the Login screen where you see the above error message then click on Power button then hold Shift and click on Restart (while holding the shift button).

2.Make sure you don’t let go of the Shift button until you see the Advanced Recovery Options menu.

3.Now Navigate to the following in Advanced Recovery Options menu:

Troubleshoot > Advanced options > Startup settings > Restart

4.Once you click Restart your PC will restart and you will see a blue screen with a list of options make sure to press the number key next to the option which says “Disable driver signature enforcement.“

5.Now Windows will boot again and once logged into Windows press Windows Key + R then type devmgmt.msc and hit Enter to open Device Manager.

6.Right-click on the problematic device (which has a yellow exclamation mark next to it) and select Update Driver.

7.Select “Search automatically for updated driver software.“

8.Repeat the above process for every problematic device listed in Device Manager.

9.Reboot your PC to save changes and see if you’re able to Fix USB Error Code 52 Windows cannot verify the digital signature.

Method 5: Uninstall Problematic devices

1.Press Windows Key + R then type devmgmt.msc and hit Enter.

2.Right-click on each of problematic device (yellow exclamation mark next to it) and select Uninstall.

3.Click Yes/OK to continue with uninstallation.

4.Reboot your PC to save changes.

Method 6: Delete usb*.sys Files

1.Take Ownership of the files C:\Windows\system32\drivers\usbehci.sys and C:\Windows\system32\drivers\usbhub.sys through any one of the listed methods here.

2.Rename the usbehci.sys and usbhub.sys files to usbehciold.sys & usbhubold.sys.

3.Press Windows Key + R then type devmgmt.msc and hit Enter.

4.Expand Universal Serial Bus Controllers and then right-click on Standard Enhanced PCI to USB Host Controller and select Uninstall.

5.Reboot your PC and new drivers will be automatically installed.

Method 7: Run CHKDSK and SFC

1.Press Windows Key + X then click on Command Prompt(Admin).

2.Now type the following in the cmd and hit enter:

Sfc /scannow
sfc /scannow /offbootdir=c:\ /offwindir=c:\windows

3.Wait for the above process to finish and once done restart your PC.

4.Next, run CHKDSK from here Fix File System Errors with Check Disk Utility(CHKDSK).

5.Let the above process complete and again reboot your PC to save changes.

See if you’re able to Fix USB Error Code 52 Windows cannot verify the digital signature, if not then follow the next method.

Method 8: Disable Integrity Checks

1.Press Windows Key + X then select Command Prompt (Admin).

2.Type the following command into cmd and hit Enter after each one:

bcdedit -set loadoptions DDISABLE_INTEGRITY_CHECKS

bcdedit -set TESTSIGNING ON

3.If the above command doesn’t work then try the following:

bcdedit /deletevalue loadoptions

bcdedit -set TESTSIGNING OFF

4.Reboot your PC to save changes.

Recommended for you:

• Fix USB Drive not showing files and folders
• Fix DPC Watchdog Violation BSOD Error
• How To Fix Screen Resolution changes by itself issue
• Fix Windows Cannot Be Installed to Drive 0

That’s it you have successfully Fix USB Error Code 52 Windows cannot verify the digital signature but if you still have any question regarding this guide then feel free to ask them in the comment’s section.

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