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The computer does not see the installation flash drive of Windows 7. What to do if the BIOS does not see the USB flash drive: step by step instructions. Correct BIOS setup

Quite often, when working at a computer, there is a need to use the loading flash drive. An ordinary user, as a rule, uses it to install OS, launch any programs from under DOS.

Due to the prevalence of loading flash drives, many users have problems with them. Frequently found difficulty is that. This entails the unavailability to the user of its functional.

You can be useful:

Hardware fault

The problem of the lack of the loading flash drive in the BIOS is manifested at certain hardware faults of the computer or flash drive. Faced with this problem, you need to check:

  • Flash drive performance;
  • Feebility of the USB port of a computer and a cartride or extension, if the flash drive connects through it.

If the flash drive is equipped with a light indicator, but it does not blink when connected, this may indicate a hardware fault. Errors at the level of "iron" at the flash drive are diagnosed by specialized Software (for example, Victoria).

Victoria HDD is an excellent program for diagnosing storage facilities

Troubleshooting hardware is often difficult to implement. In some cases, it's easier, faster and cheaper to simply replace the equipment. If the BIOS does not see the bootable flash drive due to hardware faults, can help:

  • Use another flash drive and / or other USB port;
  • Connecting a flash drive to a computer directly without the use of adapters;
  • Using the rear panel USB port;
  • Connecting a USB port to power, if it is not attached to it.

If the problem solving methods described above do not lead to a positive result, the fault refers to software.

Soft problems

Because of the problems at the level of software, most situations arise with the lack of bootable flash drive in the BIOS. Its software malfunctions almost always occur due to improper creation of the loading flash drive.

Inattention user in the process of creating a boot drive, error operating system And the bios microcode - all this leads to various software problems with a flash drive. In particular, to the fact that the BIOS does not see the bootable flash drive. This problem can be solved in the following ways:

  • Re-creating a bootable flash drive with strict instructions and / or use for this special software. So, if boot flash drive Created manually, it is necessary to format it in file System FAT32;
  • Eliminate problems with the operating system or microcode BIOS through their update, reinstall or "firmware";
  • Including USB Controller parameter in the BIOS settings. To do this, you need to find the "USB Controller" feature and translate it to the "Enabled" position.

If the computer does not see the flash drive after rebooting the computer, then the first thing you need to do is check if the flash drive is right? In order to make an ordinary USB drive The loading flash drive is not enough to simply copy the data from the computer.

Also, even if you have previously used this drive, and you can confirm that it can be used to install the operating system, it does not solve the problem. Today is different types Downloads, so even there is a flash drive and worked on one computer, it is not at all the fact that it will work on the other. So that everything has passed successfully the data must be rewritten on another principle using various software.

Is there a function of supporting the bootable flash drive in the BIOS? Is it right correct?

In some cases, problems arise not with a flash drive, but with the most bIOS system. IN different versions exist different types Downloads: USB_CDROM, USB_FDD, USB _HDD, etc.

After entering the BIOS, you must go to the present in each version. boot section. The names of the section may vary, but somehow there will be a word "boot". We are important a string: "Boot Priotity Order", that is, the loading oddness.

It should be borne in mind that it is first loaded hard, that is, what is located after it no longer matters - in this case, this USB HDD, which does not reach the queue after loading hard disk. Thus, you just need to change these values \u200b\u200bin places.

Interestingly, if you turn on the computer after a flash drive was inserted there, then in the bios it will appear with the title.

Going out of the BIOS, be sure to keep all the changes made.

The note! On some outdated devices, it is originally not possible to choose a USB. This means only that BIOS simply does not support such technology. This question is solved by firmware.

How to create a bootable flash drive to install windows

First of all, in order to create an installation disk with the operating system, you need to use a flash drive with a total memory size of 8 gigabytes and above. Why it is necessary exactly that installation disk? Just because today the volume installation Files For operating systems varies within two or four gigabytes.

  • Windows Seven;
  • Windows 8 (8.1);
  • Windows 10;
  • Ubuntu 15.

Windows 7.

Proper preparation of a USB drive to use it as a source of installation of the Windows 7 system will take from 15 to 30 minutes, depending on the speed of your computer.

First download the licensed ISO image of the operating system.

After that, download the program Microsoft Windows. USB / DVD Download Tool.

After downloading, execute the file and follow the instructions of the installation wizard.

This free program from Microsoft, which works in Windows 7, Winsows 8, Windows 10, Windows Vista and Windows XP. You will first need to format a USB drive, and then copy the contents of your ISO file of Windows 7 to the USB flash drive.

Step 1. Run the program windows downloads 7 USB DVD Tool, which is most likely located in the "Start" menu, or on the desktop. You will need to select the ISO file: click "Next". Find and select the Windows 7 ISO file. Then open it.

Note! Download Windows Best Directly from the official site Microsoft.

Step 2. Click "Next" , returning to the first screen. After that, you will go to the next window. Click on the "USB-Device" button , after that, you will transfer to the USB media selection screen (flash drives).

Step 3.When the device is selected, click on the "Begin Copying" button. Start copying installation files to media. Confirm "Clear USB Device" if the dialog box "Not enough free space will pop up ». After that, all files from the drive will be removed permanently.

Step 4. Then confirm "Yes" to go to the next window.

Step 5. Selecting the desired USB flash drive, click the "Begin Copying" button. The process of copying the installation files on the USB flash drive. Also be careful, since all previously stored files on the USB drive will be erased. Notification of the beginning of formatting will appear for a few seconds, and then copy files will begin. This part can take up to 30 minutes, and maybe even longer, depending on which version of Windows 7 is the ISO file, as well as from the power of the computer and from the USB drive itself.

On the this screen You will see the inscription Status: Backup Completed, which means that the booting USB device was successfully created.

Windows 8 (8.1)

In the case of Windows 8, another utility is required - it is called Media Creation Tool, and it can be downloaded from the official Microsoft website.

Step 1. When you start this program, you will open a window in which you will need to select the operating system, its language, version, as well as architecture.

Step 4. Going to the next window, you will hug on the boot screen and notify that the file is downloaded. Loading files on a flash drive can occupy for a long time, and there is a breakfast flash drive to be formatted.

Step 5. When the download is over, the screen will appear that the boot USB flash memory device is fully prepared. Close the window on the "Finish" button.

Windows 10.

If you have problems with the drive in windows system 10, then its solution will be similar to the solution with Windows 8 / 8.1: first download the Media Creation Tool program from the Official Microsoft website and spend the above sequence of actions. If you first run the program on Windows Seven or on the eight, you will be offered two options: to upgrade, or create a bootable media. Choose the second.

Create an installation media according to the same principles as for the "eight".

Ubuntu 15.

Unlike the same interface of different versions of Windows, Ubuntu 15 is a completely different operating system, so absolutely different methods for creating loading flash drives are applied to it.

In the case of Ubuntu you need to download from "Githab" free program UnetBootin.


Loading methods from a flash drive in UEFI

Now let's see how to upload devices in the UEFI_BIOS system from a USB drive. As a tested object, an ordinary average will be used. motherboard MSI-A58M-E33, on which the last existing version UEFI_BIOS.


After rebooting, the computer will automatically download the specified device. However, if the flash drive, even after that is not recognized by the computer, then the problem may be as follows:

  • the image was recorded on the flash drive with errors;
  • works mode safe download "Safe Boot" (below will be presented how to disable this mode);
  • there is also the possibility that the problem is in the flash drive itself - for example, that, from the moment of recording it, it was somehow damaged.

Loading flash drives on old versions of BIOS

Users using old computers can also be downloaded from the flash drive, although the rules may differ.


Save and restart the laptop. From this point on, the download will be carried out from the specified device. This model Bios is installed on most of the old laptops, so it will suit 90% of models.

USB drive for a UEFI computer

All newest personal computers Support latest versions UEFI_BIOS. Such a system has great amount Advantages, so when buying a flash drive, make sure that it is compatible with UEFI.

Creating an installation flash drive for Windows SEVEN, 8, or 8.1 using utilities Media. Creation Tool, you can be sure that UEFI will be compatible with it. And here windows program USB / DVD Download Tool, intended for "seven", no longer has such guarantees.

How to create a guaranteed version of the boot drive for Windows Seven


Rufus is a universal program, so it also applies for older versions of bios. Distinctive trait This utility is a fairly high speed of copying and writing ISO files to drives.

So you can create boot discs For any operating systems. Most of the problems will disappear as soon as you load the image on the flash drive correctly.

To disable "Safe Boot" you need to do the following:


Most often, the computer stops seeing the bootable flash drive due to lack of synchronization between the flash drive and the BIOS (UEFI), due to the specifics of their loading modes.

Almost all modern personal computers have mostly two boot modes: UEFI (mode that is usually worth the default on most machines) and Legacy.

If you try to create boot drive For Legacy mode (Windows Seven), when the BIOS is only the UEFI download - the received drive is not determined by the computer and you will not be able to select it into the BIOS.

To solve this problem, you can enable the appropriate boot mode in the BIOS. In most cases, it is required to enable Legacy mode. You can do this in the BIOS, to the appropriate boot menu (boot), and enable / switch to the "Enabled" mode of some of the following items:


Also, if you use the ONLY LEGACY boot drive, you need to turn off the "Secure Boot".

Further, if the image that is written to the flash drive can be loaded into the UEFI and in the legacy modes, it makes sense to write, without changing the BIOS settings (although this does not mean that it does not need to disable the "Secure Boot").

Already mentioned rUFUS program - This is the most convenient device for downloading in this case. In the settings, you can also choose also boot types: MBR for machines with BIOS or UEFI_CSM _LEGACY, or GPT for machines with UEFI.

Video - BIOS does not see the loading flash drive

As a rule, such problems are detected when trying to boot from a specific Flash drive. If your computing device does not see a flash drive in the BIOS, then most likely you have not made the necessary changes to basic system Computer or your removable storage device is simply not bootable. However, let's figure it out in more detail in such a confusing situation "The flash drive is inserted into the PC, but does not work properly."

Is your USB Flash-Drive?

Of course, it is possible for a long time to suffer and carry out unsuccessful experiments in the BIOS itself, which ultimately will be an empty spent of your valuable time. Because the flash drive may be simply inoperable. To make sure about, try to enlist the help of the test device - insert the "capricious" USB flash drive to another PC.

And in general, check if it seems (seemingly faulty when loading a PC) storage device in windows Environment. That is, is it determined USB memory In the operating system itself. If not, Flash Drive needs to be repaired. Perhaps everything is resolved after applying a special software, such as the branded utility to restore flash drive from its manufacturer.

Priority BIOS settings or what, where and how ...

  • Insert the USB flash drive in the USB connector of your PC.
  • Restart the computer.
  • Enter the BIOS using the corresponding button on the keyboard (for those who do not know how to do it -).
  • Depending on the basic microsystem version, the name of the section in which the connected flash drive is displayed can be different than the BOOT tab below. And yet, focus on the abbreviation values \u200b\u200b"USB" producing the search for the required section in the BIOS.

  • Test download from the flash drive.
  • Also check if the hardware USB controller is not turned off.

  • Save and reboot your computer.

Excellent if USB Flash. DRIVE Determined and PCs switched to boot mode from a flash drive. Otherwise, we turn to the next section of this article.

USB Boot Properties USB

Suppose you want to install an operating system that distributes which is recorded on the removable storage device. However, in order for the flash drive to be defined as a boot drive, it is necessary to make it one. In other words, in the process of installing installation Windows files It is necessary to use a special utility, for example, "RUFUS" (to download, click here ). Only in this case, the flash drive really will become loading.

Hardware incompatibility of the storage device

In some situations, the system bios does not see the flash drive due to the outdated interface of the memory device itself. Make sure your USB drive is not a receiver of the Ancient Standard 1.1. However, new flash drives having technological characteristics 3.0 may also not be perceived by outdated computer systems.

So, detailed features Your storage device can be found on the official website. technical support - Enter the flash drive model and read the information you are interested in. By the way, this action can help solve problematic situations with knitted with whatever USB devices (This refers to the presence on the site of a specific restorative utility).

Update BIOS System - as a solution "invisible" USB problems

Sometimes it is advisable to carry out the process of software modernization of the BIOS microsystem. How to do it in detail described here. However, B. modern computers This operation is made quite simple method.

  • Visit the technical support site for your motherboard.

  • Using a special flash drive - Put the BIOS your computing machine.

However, before proceeding with the implementation, although it is not difficult, but still a very responsible operation "Improving the version of the PC basic microsystem", carefully and detail the help information about the correctly implemented update process (perhaps it will become invaluable help for you - go ).

Boot USB incompatibility of outdated computer systems - there is a solution!

We call such computing machines "exotic". However, if you need to endow your old computer, the properties "download from the USB drive", then follow the instructions placed below.

  • Take advantage of this link - https://www.plop.at/en/bootmanager/download.html.
  • After you downloaded "Plop Boot Manager" - write it down on the CD disk.
  • Place in BIOS priority loading from an optical drive.

  • Next, after the Utility workspace is displayed on the screen - insert the USB media to the appropriate connector (preferably the main one is located at the rear system Block PC).

  • Select in the bootloader window - USB.

Now your old man can use a flash drive as a boot drive.

Summing up

So, the author of this article is confident after you have familiarized yourself with the material of the submitted article - you will certainly get everything. And yet, I want to note one not a small fact: most of the users allow mistakes only due to the fact that incorrectly understands the problem and resorts to the sometimes meaningless advice of the "courtesy Internet Guru". At the same time, exposing its critical hazard to the "full failure". Be reasonable when choosing one or another solution to your computer problems and your experience will always be effective!

Modern laptops one after another get rid of CD / DVD drives, becoming thinner and easier. Together with this, users have a new need - the ability to install an OS with a flash drive. However, even if there is a bootable flash drive, not everything can go so smoothly as I would like. Microsoft experts have always loved throwing curious tasks for their users. One of them - BIOS can simply not see the carrier. The problem can be solved by several consecutive actions that we now and describe.

In general, there is nothing better to install the OS on your computer than the personally made loading flash drive. In it you will be 100% sure. In some cases it turns out that the carrier itself is incorrect. Therefore, we will consider several ways to make it for the most popular versions of Windows.

In addition, you need to set the correct parameters in the BIOS itself. Sometimes the reason for the lack of drive in the list of disks may be in this. Therefore, after you figure it out with the creation of a flash drive, we will look at three more ways to configure the most common versions of the BIOS.

Method 1. Flash drive with installer Windows 7

In this case, we will use.


This method Suitable for windows 7 and older. To burn images of other systems, use our instructions for creating bootable flash drives.

In the following instructions, you can see ways to create the same drive, but not with Windows, but with other operating systems.

Method 2: Setting up AWARD BIOS

To go to B. Award Bios.Click on F8 while booting the operating system. This is the most common option. There are also the following combinations for entry:

  • Ctrl + Alt + ESC;
  • Ctrl + Alt + Del;
  • Delete;
  • Reset (for Dell computers);
  • Ctrl + Alt + F11;
  • INSERT.

And now let's talk about how to configure BIOS correctly. In most cases, the problem is precisely in this. If you have Award BIOS, do this:




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