Did you know Windows 10 has a speed test feature you can easily run from the CMD prompt?
This feature is what many USB flash drive speed test applications call upon during their operation. Rather than download some software utility off the internet, which only god knows what virus could be lurking inside, just use the Windows tool.
In addition to avoiding the possibility of a virus from a internet download, this tool is a standardized feature everyone has. In the event you are having performance issues you are trying to report to a flash drive manufacturer, this tool gives you both the same code to perform USB flash drive speed tests without having different applications giving varied results.
Every flash drive manufacturer claims a particular read and write speed of their flash drive and this is a great tool to verify what you purchased is what you received. It’s been said manufacturers will manipulate their computer environment to optimize the performance and use those optimized results as their marketing material. This could be true when a manufacturer is trying to determine the maximum performance, so let’s take a look now at benchmarking a standard environment.
The read and write speed of a flash drive will depend on the USB port one is using during the test. You will see a performance difference between a USB 2.0 and USB 3.0 device that is connected to a USB 2.0 or USB 3.0 socket on your computer. So take note about what you are doing!
After you’ve connected the USB drive to your USB port, take note of which technology they are, and be sure no data is on your drive. Although this Windows utility did not remove our data during testing, one can never be too sure.
In Windows type CMD into the search field.
Please be sure to use the Ctrl + Shift keys when you click the Enter key. This will run the command prompt at the Administrator level. You want to run this at the Admin level because if you don’t, a separate window will pop up during the testing process and immediately disappear with the process is done… taking the speed test results with it!
Once you’ve opened the command prompt at the Admin level, type the following:
winsat disk -drive d (where d is drive letter)
Windows will perform it’s task and should take about one minute to complete. The results will be printed out in the console window once everything is complete. Take note from our example below. This is a 64GB drive which we connected to both a USB 2.0 socket and a USB 3.0 socket. You can see the performance difference.
The information you want are:
- > Disk Sequential 64.0 Read
- > Disk Sequential 64.0 Write
Nice feature, right? Free and immediately available.
For those who don’t want to go this far, you could always take a large file, say 100MBs or larger and drag-and-drop this to your USB flash drive for speed testing. Just look at the copy process window and you’ll get a fairly good idea of device speed.
It’s important to remember flash drive media does not copy at sustained transfer speeds. The speed process does move around during the copy process; however, the read process is more stable and should happen at a more sustained transfer speed. We’ve seen drives drop down to 1MB/second for a short bit, before jumping back up to 30+MB/second write speed.
It seems the Microsoft updates are endless for Windows 10. Most users don’t bother with reading the notes about what has changed or been updated, myself included.
Today we noticed the eject feature in the Windows toolbar for quickly unmounting USB flash drives.
This isn’t breaking news. Simply a post about a feature you might not have noticed.
How to quickly eject a USB flash drive in Windows:
Click the access arrow in your tool bar
Hover over the USB icon and click
Your list of connected devices will show up. Hover over the USB flash drive device you want to Eject and click it.
That’s it. Your USB flash drive is now ejected.
Turning off Windows Updates permanently isn’t difficult. All you do is this:
In the search box of Windows type: services.msc
From the list shown, select: Windows Update
After you double click to open the Windows Update settings, use the drop down menu and select: Disable
Click Apply and then OK and you are done!
If you like pictures more… here they are:
Roll Play Scenario:
- Windows: Sound of connected a USB flash drive to Windows…
- User: Ah yes… let’s get to work!
- Windows: The Windows sound of a disconnected USB device…
- User: Oh no, what’s happening?
A quick Google search and here we are… let’s take a look:
Here are five legitimate reasons your USB drive might be disconnecting from your Windows computer.
1. Running on Battery
Windows OS is set at default to power down USB ports when running from a battery. The power down process usually doesn’t happen until 10-15 into a stalled USB port, but maybe your setting is different. So worth checking… but first… plug in your laptop and see if the problem is resolved.
To check your USB power setting do this:
Search for Control Panel and click Enter
In the Control Panel click the Hardware and Sound link
From here (might be slightly different for everyone) click the Change battery settings and further click Change plan settings and then you’ll see an Change advanced power settings option. Click the Change advanced power settings you can scroll around to find the USB devices and adjust your power there.
2. Faulty USB Port
The number one reason for why a USB device doesn’t work is the physical USB port on the host computer. A laptop generally has only 3 or 4 ports and those ports get a lot of action. With a tower PC, the front USB ports on the bezel also get most the action. Question: When you insert the USB device can you wiggle it around? Was there very little tension or pressure when connecting the USB device? If the device wiggles, or extremely easy to insert… you might have a physically bad USB socket.
This article will help you view Linux files on a flash drive when connected to a Windows 10 computer. This is a more common problem than you might think. In 2020, the percentage of computer users who use Linux is just above 25% of all computer users? This implies you will eventually receive a USB flash drive which was formatted and used in Linux to save files. If you are a Windows user and currently in this situation, here is your help.
Linux may use FAT32 or exFAT to format a flash drive, but the default would be either ext2, ext3 or ext4.
In Windows, when a USB is formatted as the ext type, Windows will ask to format the drive. Do not do this if there is data on the drive you are trying to access. (Previous article on best way to format USB drives)
The solution to resolve the Windows request to format the drive, and see the Linux files on the drive is do the following:
This first tip might not be “required” but it is highly recommended.
In the Search field of Windows type Control Panel and click Enter
This will take you to the Control Panel.
Click Programs and then click Turn Windows features on and off
In the dialog box which pops up, you’ll need to scroll down most of the way when locking for
This topic is brought up today because we hear some Users have issues understanding this point. The partition size inside an image file does matter. The question we will answer today is why it matters.
Let us start off with two simplified overviews. First, all storage devices use a partition to define it’s characteristics. A storage device has a file system, like FAT32 or exFAT or NTFS and that file system has a defined size or digital capacity. These characteristics, and some others, are laid out in the partition.
Second, an image file is the above partition with all its detail, the file system, defined capacity along with all the actual files and folders on that partition and put into a single file or .img file.
For a non-technical person, let me use a puzzle as an example.
- The puzzle box is equivalent to the physical device.
- The plastic bag inside the puzzle box, holding all the pieces, is the image file.
- Print on the puzzle box indicating the number of pieces, is the partition.
- The puzzle pieces inside the box are equivalent to the data.
Okay, so at this point we know the image file (.img) is the bag which holds all the puzzle pieces and the data are all the bits inside the bag. So let’s address the question of this post, “Why does the partition size matter inside an image file?”
Back to the puzzle box. As with any puzzle, the outside of the box lists the number of pieces. In this example, we can use the number of pieces printed on the outside of the box as the partition table size. If the physical box size is, let us say, 8″ x 11″ then it’s totally logical that a 1,000 piece puzzle would fit inside. In fact, it is logical to say even a 20 piece puzzle will fit inside the box. But, could a 5,000 piece puzzle fit inside this box?
From the three scenarios above, one doesn’t work, right? The scenario where the box says there are 5,000 puzzle pieces in a box that is physically to small.
Partitions are the same.
The situation which doesn’t work, is when the print on the outside of the puzzle is telling you the number of pieces inside the box are clearly more than what the physical box can handle.
Said another way, you cannot use a partition table size of 4GBs and try to have the image file fit on a USB stick that has only 1GB of storage space. Even if the image file itself is only 1GB large of actual data. Just like the puzzle, no matter what is printed on the outside of the box, if the number of pieces are larger than what can fit inside the box… it just doesn’t work.
Here is a real-world example: You can download this IMG file which is only 40MB large. The IMG itself has a 4GB partition inside it. As long as you write out the IMG file to a flash drive that is 4GBs or larger, everything will work. If you try and write out the IMG file to something smaller, like a 2GB stick, it won’t work.
Windows is very smart. All versions of Windows (from 7 and higher) will take a look at the total available memory and compare that to the partition table size. If Windows sees the partition table is larger than the available memory of the device, she won’t let you do anything with the device… other than format it. Once the drive is formatted, Windows will automatically rewrite the partition table to fit the amount of available memory. In this example, Windows would format the drive to become a 2GB stick… not a 4GB stick.
Why does Windows do this?
They want to eliminate fraud. Windows 7 was introduced in 2009 and before that, the only OS was WindowsXP. Well, Windows XP didn’t have the capability to compare partition tables to available memory. The result was fraud. Many would sell some larger GB capacity drive… like at the time 32GB, but only 4GB of real, usable, memory was there. The user would run out of memory space long before the “printed capacity” of the drive was reached.
If you found this article; maybe there is a situation where an image file is not working when written out to a USB flash drive? If this is the case, be sure to check your partition table compared to the amount of physical memory available. The easiest way to check, would be mounting the IMG file on your computer and check Properties for the partition size. Keep in mind, the default “Mount” command in Windows doesn’t work. You need something like this.
When trying to format a flash drive in Windows (7 or 10) you will see the file system options best suited for the device. The proper file systems for a flash drive would be: FAT, FAT32 or exFAT. Windows will also list NTFS for a flash drive, but not the best for a USB stick, as mentioned before. The file system types listed by the Windows GUI (Graphical User Interface) will depend on the GB capacity of the flash drive connected.
So why no UDF file system on the list?
First, let me say it IS possible for Windows to format a flash drive as UDF (Universal Disk Format). Microsoft just doesn’t want you to do it; and there are good reasons why.
Before the reasons given for not using UDF as a format on flash drives, let’s clear one thing up: If you think formatting a flash drive as UDF will make the thumb drive appear as an optical drive in the computer – you are mistaken!
From the Wikipedia page about Universal Disk Format, UDF, the specification is governed by the Optical Storage Technology Association and because of that, many believe a UDF anything will work like a disc. It, UDF, is most widely used for DVDs and newer optical disc formats, can be used on flash drives, but does make it operate like one.
If we take out the hope of formatting a USB with a UDF file system, some may feel the Universal Disk Format means the flash drive will work in anything, such as from Windows, to Mac, to Linux, Symbian and/or to proprietary system. The truth here is exFAT will do just the same. Please keep that in mind.
So why not format a USB as UDF in Windows? Here is a list:
- The lack of fully-functional filesystem check tools.
- 64GB limit with Windows & Linux, a bug, not a limit of UDF
- SD and USB mass storage devices are exposed to quick wear-leveling failure
- UDF is read-only for Windows XP
Without bogging down this post with ultra-technical information, from the above list, the most important to consider is the first, lack of filesystem check tools.
This means if the USB is pulled out while in operation and a bit is affected by the action, there are no tools to check the file system for errors. You are flying the dark as to why the USB no longer works and there are no tools available to help you figure it out. Given the flash drive was specifically designed to be portable and quick access, the above action is most certainly going to happen sooner or later, which makes UDF a high risk file system.
How to format a flash drive as UDF:
Connect the USB to your computer and note the assigned drive letter
We all spend so much time on our computer, its worth customizing sounds and events we experience while using the computer. Today, we will cover the topic of changing the USB sound when a USB device is connected. You can really have some fun with this, especially if you consider some of the USB jokes mention before, and how those jokes could apply when a USB is shoved into a USB port.
While your mind wonders, I’ll move along to the tutorial part of this post:
In the search field, type in Control Panel and select the Control Panel.
From with in the Control Panel click Hardware and Sound
From the Sounds category, select Change system sounds
The window will pop up on the “Sound” tab and you’ll need to scroll down through the list of “Program Events” to find Device Connect and you will click on that time to highlight it.
You’ve connected a USB flash drive, heard the familiar Windows sound of connection, yet no drive letter shows up. You then go into Disk Management for Windows and you can see the device and memory, but no drive letter.
What should you do?
Most times this process is automatic and Windows will asign a drive letter to any storage device connected to your PC, whether it be a USB stick or a USB hard drive, or any other mass storage device.
However; in the event a drive letter isn’t assigned there is a very quick way to get your computer back to working the way it should.
- Open Command Prompt as Administrator
(search for CMD and right click to open as Admin)
- Type ‘diskpart’ and hit Enter.
- Once in the DISKPART type automount enable and click Enter.
If the above doesn’t do the trick, another issue may be at hand. Maybe some conflicting registry entries from past USB devices connected to the PC and for this reason the automount was disable, or no longer working properly.
Nexcopy has a registry cleaning tool specifically design for USB devices connected to your computer. This utility is an exe file that does not require installation and does not have spyware, malware or anything else. It’s from a company you may
The link below is for a zip file which has two batch files to either set the USB write protection, or remove the USB write protection for a Windows 10 computer. This batch file also works for Windows 7 machines.
This solution is ultra-easy and very quick. One click to run the reg edit file and one click to confirm the task. That’s it.
Typically a person will want to lock down the USB ports of a computer to insure a virus doesn’t spread to the computer through a USB device, like a flash drive. The nice thing about this batch file is a very quick and easy way to both lock down your USB ports, and equally easy way to unlock your USB ports.
It’s important to note; do not have a USB flash drive connected to the system when you run either batch file.
For those looking for a bit more detail, the information below is the specific registry edit we are making. Changing the dword to 00000001 sets the device policy for the computer to be write protected. Changing that value back to 00000000 will make the USB ports read/write.
It is also important to understand this USB write protect solution is not specific to the USB stick itself. Nor will this solution work on all Windows machines when you move USB drives from computer to computer. Said another way, this change is PC specific.
If you need USB write protection to be permanent to the device and universal to anything the USB is connected to, you may contact Nexcopy.com and ask for their Lock License drives. This is a solution we have found works very well and is done at the controller level of the USB stick itself. Meaning, the USB is write protected for anything it is connected to. The value of this configuration is no chance for a virus to jump onto the USB stick in the first place. This last solution is really the best solution for universal USB write protection.
Here is a screen shot of the two batch files:
The most common reason why only one flash drive is usble when multiple USBs are connected is due to a device signature collision.
If you are dealing with bootable devices and seeing this problem, we are confident a collision is the issue. If you are not dealing with a bootable device, then our information below will, probably, not help.
What is a USB signature collision?
A signature collision can happen on any bootable device, so Compact Flash cards, SD cards, microSD cards and USB flash drives. A disk signature is a unique identifier number (UID). It is a unique identifier stored as part of the MBR (Master Boot Record) for an operating system loaded on the device. The operating system will use the UID to identify and distinguish between storage devices. It is commonly made up of eight alphanumeric characters. A disk collision occurs when your operating system (Windows) detects that there are two disks with identical signatures.
For Windows 7, 8, 8.1 and 10, these versions of Windows will disable the second drive and will not allow that second volume to mount until the disk collision has been rectified. If you are reading this article, chances are, this is exactly what is happening to you.
The first thing to do is navigate to the Disk Management tool with in Windows. To do this, use the search tool and type in Disk Management. This will take you to the utility that Windows offers. Here you can see your multiple devices connected. If you click or hover over the device not working you will see one of two messages:
This is happening on Win8 and Windows 10.
When I remove a USB drive and reconnect it, Windows will not assign a drive letter. Clearly this is a problem as every other computer I use assigns a drive letter.
There are three solutions. All of which will work.
1) You can go into Disk Management and select the device and assing a drive letter. This is a manual process and not ideal for each time you plug in a flash drive.
2) Good chance the driver or registry entry for that device is rogue or corrupt. Use this USBScrub tool to remove the registry entry. Chances are this will fix the problem. USBScrub link
3) Use ‘diskpart’ and enable the automount feature.
- Open Command Prompt as Administrator (search for Command Prompt in the Start Menu, right click, Run as Administrator)
- Type ‘diskpart’ and hit Enter.
- Once in the ‘diskpart’ command prompt type ‘automount enable’ and hit Enter.
- Type ‘exit’ and click Enter
For solution number one from above, Disk Management is really the GUI version for diskpart, but a GUI (Graphical User Interface) which has scaled down functions from what all the things diskpart can really do.
Diskpart has 37 commands that you can do very cool things with. The 38th command is