Computer Does Not See Windows 7 USB Flash Drive

Installing Windows 7 does not see the USB mouse and keyboard (we solve the problem with the BIOS settings)

If installing Windows 7 does not see a mouse or other input device, the first thing to do is check the USB ports into which these peripheral devices are inserted.

Blue Ports (USB 3.0) may not supported master, and therefore, at least during installation, rearrange the equipment in the gray ports (USB 2.0)

In most cases, the problem will be resolved. Otherwise, do the following in order: actions inBIOS(later in the article, these actions will be described step by step):

  • Disconnect(Intel)"XHCIMode" in the tab "Advanced";
  • Try a different item value “USB Legacy Support”;
  • Reset BIOS.

Doing all three actions at once is optional.
Test your mouse and keyboard after each step, starting from the first. First you need to go into the BIOS. Learn how to log in. BIOS on various devices (desktop computers or on different brands of laptops) you can look in this article: how to enter the BIOS. Restart your computer and on the motherboard logo enter"SetupMenu", by pressing the key F1 (F2F12,Delete. depending on the BIOS). Now proceed:

Step 1. Disable (Intel) xHCI Mode

You can find this option in the tab. "Advanced"on the menu BIOS.

  1. Go to "Advanced", by navigating with arrows on the keyboard;
  2. Change the mode to "Disabled" in point "xHCIMode";

Figure 1. Set the Disabled mode for xHCI Mode.

  1. Save the settings by going to the tab "Exit" and selecting "ExitSavingChanges";
  2. We check the mouse and keyboard by trying to install the OS again.

The first action helps in the vast majority of cases. Go to the next heading if:

You may also like

  • Knowing how to connect the phone to a computer, you can use this opportunity to transfer data directly from one device to another.And without the help of the Internet, and at a fairly high speed.This ...
  • Locking the screen with a graphic key, password or PIN code significantly increases the security of the phone. This protection will not allow an attacker to gain access to your files, photos, crack pa...
  • Level of difficulty: for beginners. The need to distribute the Internet from a smartphone to other devices arises quite often, especially in those regions where there is 3G, 4G (LTE) coverage, but the...
  • Each smartphone manufacturer is trying to build its own virtual keyboard into its creation. But it does not always meet user requirements. In this case, the Android operating system allows you to repl...
  • Learn how to transfer photos and videos from iPhone, iPad, or iPod touch to your Mac or Windows computer. We will also show how to use iCloud Photos to make photos available on all your devices.Specif...
  • Recently, there has been a lot of debate that Windows 10 does not work very well on weak hardware, that you often have to install drivers yourself, etc. The other day I was convinced of the opposite ...
  • Line "xHCIMode" is absent;
  • Item Execution "Action 1" no result.

Step 2. Switch USB Legacy Support Mode

It is also located mainly in the tab "Advanced ». We need to change the mode of this function to the opposite ("Enabled" on the "Disabled » or vice versa).
Figure 2. Changing the value of USB Legacy Support.
Do not forget save changes in the tab "Exit", by selecting the optionExit Saving Changes", The computer will restart automatically.

We check our devices by starting the Windows installation again. If the peripherals still do not work, you should try reset the motherboard.

Step 3. reset the BIOS (if the previous steps do not help)

Solving the problem when using PS / 2 keyboard and mouse

Failures in these devices are rare and are mainly related to BIOS and hardware failures. Before performing the following steps necessarily turn off the power to the computer. This precaution is that ports PS/ 2 It is highly recommended not to touch when the system is running. If you are using standard PS/ 2 peripherals should:

  • Check and clean the connector / port of the keyboard and mouse for various types of contamination;
  • Try similar USB equipment;
  • Swap mouse and keyboard connectors;
  • Update the motherboard BIOS to the latest version.

If all of the above does not help, try using another copy Windows 7. Lack of support PS/ 2 devices may be due to the fact that a particular assembly does not contain, in fact, outdated drivers for these devices (can be cut from the final image).

The computer does not see the bootable USB flash drive and / or other USB devices when installing Windows 7

  1. Rearrange the USB flash drive with the system from the port USB 3.0 (blue color) in USB 2.0 (grey colour);
  2. Check the correctness of recording the installation image of the OS (just insert the USB flash drive / DVD into another PC);
  3. Make sure the other USB peripherals are working (i.e. try to connect other devices to USD ports, especially if you have a laptop);
  4. Reset BIOS to factory settings;
  5. Check item USB Functions in settings BIOS, which is in the tabs: "Main" or "Advanced", depending on the model of your motherboard (there should be a mode "Enabled")

If the installation Windows does not see USB devices at all, refer to the first chapter. It provides some general steps to solve the most common failures.

Windows 7 Setup Wizard Does Not See Hard Disk (SSD) or Asks for Driver

Manual installation of hard disk or SSD drivers

Going to this chapter is recommended after fully familiarizing yourself with the previous one. This will help eliminate unnecessary actions.
In most cases, the installation image already contains the software for many drive controllers (SATA drivers). However, if the model of your computer / laptop board is fairly recent (or, conversely, old), the drivers may simply be missing.

Computer Does Not See Windows 7 USB Flash Drive

Therefore, we need to “specify” them ourselves at the stage of choosing a system disk. The following instructions will describe this process in more detail. Getting down.

STEP 1. Finding the Required Software.
Download drivers from the website of the manufacturer of your laptop or motherboard. First of all, we focus on files that include one or more examples of words: INF, SATA, RAID, Rst.

STEP 2. unpacking and dumping to the media with the OS image.
Unzip the downloaded file into a separate folder → copy it to any place on the installation flash drive.
note, what do we need drivers should not contain executable. " exe "files. Only fit unpacked (such drivers usually include folders: amd, x64, as well as many . inf files).
STEP 3. indicate the desired software in the disk selection window.
Insert the USB flash drive into the computer → we reach the stage of disk selection for installation. Find the button here "Loading" (or "Overview") and click on it.

An explorer opens in which you need to specify the necessary driver. Figure 4. Select the desired folder with the driver.
A hard disk drive (SSD) will be detected if suitable drivers are selected. Now you can continue the process by selecting the appeared SSD drive.

Drivers are installed, the drive is displayed. However, the wizard does not see or does not allow you to select the desired section

In this case, try remove markup HDD / SSD directly in the window disc selection. Attention! The following actions lead to formatting drive and, consequently, to complete data loss. Make sure all your important files are saved on a separate drive. To do this, you need:

  1. Press button "Disk Setup"at the stage of disk selection;
  2. Delete all available sections to start installation on unallocated space;

Figure 5. Delete existing partitions.

  1. Create a new partition, if necessary → continue the installation process.

Done. These simple steps are likely to solve your problem.

When installing Windows 7, the optical drive is not detected

Sometimes the installation wizard may not detect the DVD drive. To solve this problem, the first thing you need is:

  • Check the integrity of the OS image on the installation disk;
  • Re-write the image to another disc with minimal speed;
  • Use a flash drive (preferably USB version 2.0) instead of a CD;
  • Make sure the drive is working: check the connection, power supply contacts, motor and drive performance.

The above steps will help solve your problem. Otherwise throw offBIOS and try another OS image / build.

Also, in extremely rare cases, reinstalling the driver for the DVD drive can help. Detailed information can be found in the chapter "Manual driver installation", and drivers for the drive. on the manufacturer’s website.