For those who have purchased a USB pendrive clandestinely or in an unauthorized place (unofficial store), the tools that we will mention below can be very useful because with them, you will have the possibility of knowing the condition of these small data storage devices.
It is no secret that many of these USB flash drives usually come defective and even adulterated in terms of the actual size they have. If you have noticed strange behavior on your external storage device, it is best to try to go to the store where you bought it to claim a warranty as long as it was an official one. In any case, you still have the possibility to perform a small check on your USB pendrive quickly and without breaking the guarantee that the store offers you.
1. Check Flash
The first tool that we are going to mention right now is precisely this; you can download completely free from the official website, being able to see a fairly simple interface to use once you run it.
In the upper left part of the interface of this tool there are three analysis modes, and you should use the first one if you want to perform a quick analysis. With this, the tool will try to generate a file of a certain size on the USB pendrive. Towards the right side you will admire what is happening in this analysis, where small cells will fill up to full capacity that the USB pendrive has. If there are bad sectors or blocks, some of these cells may appear in a different color. All the options that are shown on the left side are easy to recognize, since we only have to select them to locate our USB pendrive (by the drive letter) as well as the definition of the number of "steps" that we want it to take. this tool does in your analysis.
As results we can admire at the bottom of this same interface, the reading and writing speed as well as the time it took to review this entire analysis.
2.RMPrepUSB
This is going to be another tool that we could use to analyze our USB pendrive; It has been very useful for a large number of people who have wanted to discover if their storage device has real space.
The image that we have placed at the top is telling us what we must do to start analyzing the USB pendrive. The tool has a working efficiency with devices of up to 64 GB, and must activate the option that recognizes larger drives (like 128 GB) using the drop-down menu under “Drive”. As before, as results we will receive the condition of the USB pendrive that we have put into analysis.
3. H2testw
Many people may have used this tool, which is one of the easiest to use due to the interface it has.
The advantages of using this tool are multiple, since the user will have the possibility of choose the space he considers necessary so that writing and reading can be done on the USB pendrive. What we first have to do is look for the drive letter to which this storage device belongs, and then use the option located a little further down in this same interface to define the number of megabytes of the file that will be stored. will try to generate or copy inside this external device. At the bottom of the interface there are two additional buttons, which will help us to "write data" with the possibility of performing a "verification" of it.
Any of the tools we have mentioned can be used completely free of charge with both a USB pendrive and an external hard drive; In addition, if you have a large capacity micro SD memory, you can also use these tools to perform the respective analysis.