External hard drives have become essentials as they store data. However, they are also prone to issues and one of them is the “The device is not ready”. You could encounter this error when you try to access your connected hard drive. This error won’t allow you to access the contents of your hard drive so unless you fix it, you won’t be able to access any of the files on your hard drive.
One of the most likely causes of this error is a hardware defect. Aside from that, it could also be due to loose connections, obsolete device drivers, as well as compatibility issues between the operating system and the hard drive. Before you start troubleshooting the problem, you need to determine if you were able to access your hard drive before you encountered the error or not. If not, you need to check the compatibility of the device with your operating system as it could be the reason why you’re getting the error.
There are several potential fixes you can check out to fix this error. You can try to check the hardware connections, run the built-in Hardware and Devices troubleshooter, as well as the USB troubleshooter. You could also run the CHKDSK utility or update the drivers of the device or the USB drivers.
The first thing you have to do before you further troubleshoot the problem is to check the hardware connections of your computer and see if there are damaged ones, just like with USB ports, it would also affect the overall connectivity of the device with the computer. So if you notice some irregularities in the connecting cable physically, you might have to buy another one and replace it and then see if it fixes the problem or not.
Note: You could also try to run the USB troubleshooter as it could also resolve the problem.
As you know, the CHKDSK utility can help you in identifying the bad sectors in a drive and fix them automatically. Thus, you can run it to fix the “The device is not ready” error when you connect your USB drive to your computer.
Although you can always update the device drivers using the Device Manager, you might want to try downloading the latest set of drivers directly from the manufacturer’s website. Once you’ve downloaded them, install them right away and then correct the external hard drive.
If updating the drivers of the device did not fix the “The device is not ready” error, you can try to update or reinstall the Universal Serial Bus Controller drivers instead of using the Device Manager. Refer to the following steps:
Note: If it is a regular USB drive, then it will be listed as a USB Mass Storage Device but if you have a USB 3.0 device, then look for a USB 3.0 Extensible Host Controller.
Note: If updating the USB Controller drivers didn’t work, you can try to reinstall them instead.
If the first three given options didn’t work and you still see the error when you connect external devices, you can try putting your computer in a Clean Boot State and then try connecting them again.

Error code 0xc0000142 is an error code that affects Windows 10 users. It often occurs when users attempt to run Windows applications. The message in the application error box allows users to recognize the error as it states that “the application was unable to start correctly (0xc0000142).” Common symptoms of this error code include the following:
Error code 0xc0000142 in Windows 10 is often caused by issues related to startup programs, corrupted files or other applications. To address this issue, the source of the issue needs to be located. But how will users be able to do this while the error code is present?
To fix error code 0xc0000142 users will need to employ at least one manual repair procedure. This may include checking your system for corrupt files through tools like Microsoft’s System File Checker (SFC). If you are uncertain of your skills or prefer to get professional support, contact a Windows repair technician to assist you.
The top three methods to resolve error code 0xc0000142 include the following:
A clean boot is one of the most basic procedures you can run to solve a Windows-based error code of this nature. It works by identifying whether or not conflict among startup programs is preventing Windows applications from running properly. This occurs through a clean boot process involving Windows using a minimal set of drivers and startup programs when you reboot.
Here is what you’ll need to do:
This method resolves software conflict arising when you attempt to update, run a program or simply use your operating system. However, if error code 0xc0000142 remains unresolved after you restart your machine, follow the next step below.
System File Checker (SFC) is a utility tool built into the Windows 10 operating system, as well as other versions of Windows, to detect and repair corrupted system files. Since corrupted system files can result in error code 0xc0000142, run this tool by following the steps below:
Once these procedures are followed, the System File Checker tool will automatically scan your machine, and find and repair corrupted files. If this is the source or underlying cause of error code 0xc0000142 on your system, the error code will be resolved. However, if the source of the issue is not due to corruption in our system or is simply a more complicated issue try the next method highlighted below.
Get-AppXPackage -Name Microsoft.Windows.Cortana | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)AppXManifest.xml"}
bootrec /rebuildbcd
| Option | Recommended use |
|---|---|
| Automatically select unsigned drivers | Useful for testing on computers that are running versions of Windows that do not require signed drivers. |
| Automatically select drivers built for older versions of Windows | Useful for testing driver compatibility with newer versions of Windows. |
| Automatically select all drivers installed on this computer | Provides maximum coverage in terms of the number of drivers that are tested on a system. This option is useful for test scenarios where a driver can interact with other devices or drivers on a system. This option can also exhaust the resources available for Special Pool and some resource tracking. Testing all drivers can also adversely affect system performance. |
| Select driver names from a list | In most cases, you will want to specify which drivers to test. Selecting all drivers in a device stack allows the Enhanced I/O Verification option to track objects and check compliance because an I/O request packet (IRP) is passed between each of the drivers in the stack, which allows for a greater level of detail to be provided when an error is detected. Select a single driver if you are running a test scenario that measures system or driver performance metrics, or if you want to allocate the greatest number of resources available for detecting memory corruption or resource tracking issues (such as deadlocks or mutexes). The Special Pool and I/O Verification options are more effective when used on one driver at a time. |