I just got a new Toshiba laptop with Windows 8 pre-installed. As I hate Windows 8 I decided to make a clean install with Windows 7. I got my Windows 7 installation on a bootable USB (it works with my other computers running Windows 7/Vista/XP), plugged it in, went into the BIOS and changed the boot priority to USB as primary. But it still doesn’t boot from the USB, and just boots right back into Windows 8. I have tried the same thing with a Windows 7 DVD and still can’t boot from the CD.
I spent entire last night trying to figure out this issue and eventually I found the solution. All you got to do is to disable the UEFI mode and turn off the Secure Boot option in BIOS, which allows the EFI-based PC to operate in a legacy BIOS mode. Fortunately, nearly all modern EFI-based computers include a feature known as the Compatibility Support Module (CSM) that enables them to boot with legacy BIOS mode.
One of Microsoft’s new rules for Windows 8 is that any manufacturer that ships a windows 8 computer must enable UEFI secure boot by default. The UEFI BIOS is created for Windows 8 and if you need to use other system like Windows 7, Linux or any other OS, you have to disable the UEFI BIOS and Secure Boot options.
How to Set Windows 8 PC to Boot with Legacy BIOS Mode Instead of UEFI Mode?
When your computer is powered on, check the boot-screen for setup key (i.e. DELETE key, F8 key, F2 key) to enter BIOS Setup Utility. If you don’t know how to access your BIOS (UEFI) Setup, please check out this article: .
In the BIOS Setup Utility, change the boot mode from UEFI mode to legacy BIOS mode (or CSM boot mode), and disable the Secure Boot option. Here are steps of disabling UEFI secure boot in Toshiba laptop:
Power on the system and while the “TOSHIBA” logo appears, press F2 key to enter the BIOS Setup Menu.
Select Security tab and set the Secure Boot to Disabled.
Select Advanced tab and go to System Configuration.
Set the Boot Mode to CSM Boot.
Press F10 key to save and exit.
Press F12 key at “TOSHIBA” logo screen to toggle between the bootable devices and choose the medium which you want to boot from.
Note: Once you are finished and you want to return back to normal operation you need to revert the BIOS settings. The installed Windows 8 OS will not boot up, if you do not revert the BIOS settings!
The exact menu option in your motherboard’s BIOS may differ but look for phrases like “Boot Mode”, “Boot List Option”, “UEFI/Legacy Boot Priority”, “UEFI Boot”, etc. For example, in ASUS desktop or laptop computers, you need to enable the “Launch CSM” option and disable the “Secure Boot Control” or “Fast Boot” option.
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Most computers from PC vendors come with certain pre-configured factory settings which are important to the computer&s operation. This is particularly true of laptops, which usually have special function buttons, and touch screen computers, which require special drivers in order to function. Of course, a computer from a factory also has default Windows settings and does not feature any of your own customizations.There may come a time in your computer ownership that you decide to basically hit the reset button.This may be because your computer was struck by a virus, or it may be because you are selling your computer and you want to make sure your personal information can&t be retrieved by the person you are selling to.Whatever your situation, this guide will help you completely restore your computer to absolutely pristine factory settings.Step 1: Save Files & FoldersDepending on your version of Windows and the recovery system your computer&s vendor uses, some of your settings and files may be saved when you restore your computer to factory settings. However, it is best not to rely on this.Treat your restoration to factory settings the same as you would a complete re-format of your hard drive. Assume all data will be lost and
Your data is fragile & it only takes one small accident to lose everything. The more backups you make, the better. Here we present the best free backup software for Windows.
to an external hard drive. Don&t bother backing up programs you can reinstall, but make sure to back up everything you don&t already have a copy of.Also, make sure that you back up your browser information. The help website of the web browser you use should provide instructions on how to back up your browser. If you don&t do this you will lose all of your bookmarks and saved passwords.Step 2: Start The Recovery ProgramThere are two common methods for returning your operating system to factory settings. One of these is to simply reinstall the operating system through the operating system&s own repair or reinstall process. With Windows this usually requires access to a Windows installation CD &or the creation of a boot CD. If you have this available, you can refer to our guide on
Windows 10 is adding a new method of reinstalling in the new Creators Update. Here's how to use it and how it works.
.However, most computer vendors no longer ship out a copy of the Windows installation CD with their computers. Instead, the computer ships with a recovery partition or recovery disk. Each vendor uses their own particular type of solution, but the basics of them are the same. The most common names used by each company for their recovery solution can be found below. Note that manufacturers do change names from time to time & usually it will simply be something with the vendor&s brand name and the word &recovery& included after it.
Acer & Acer eRecovery
ASUS & ASUS Recovery Partition
Dell & Dell Factory Image Restore
Gateway & Gateway Recovery Management
HP & HP PC System Recovery
Sony & Sony Vaio Recovery Wizard
You can start the recovery program from within Windows. Alternatively & if perhaps your computer is having problems booting into Windows & you can usually access the recovery partition during your computer&s boot cycle. Pay attention to the display when your computer boots. There should be text indicating what button you need to press to start the recovery process. Typically, it will be a function key.Step 3: Restoring To Factory SettingsEach vendor has their own recovery solution, so there is no way to provide a definitive guide to each and every vendor within the scope of this article. However, the general process of restoration almost always works like this.
First, you will start the restoration program in Windows.&The program will ask if you&d really like to begin the restoration process and warn you that your data could be (or will be) destroyed during the process.
Once you confirm that you would like to start the recovery process you&ll reach some sort of progress screen.&The computer may reboot to access this, or it may simply exit Windows and boot directly into the restoration program. At this point you&re set in your course & do not cancel the process. This can take half an hour to several hours depending on the speed of your computer.
Once the restoration to factory settings is complete the computer will reboot and begin the Windows setup process. You will have to set up your user account and your settings just as you did when you first purchased the computer.
Step 4: Finishing RestorationIdeally, the factory restoration wizard will completely restore everything needed to make your computer fully functional. However, in some situations you may find that a few drivers were not installed. For example, you might find that the screen brightness buttons no longer work on your laptop.If you run into this problem you&ll need to download the drivers for your computer, which can be found on the vendor&s support website. You can either enter the serial number of your computer to obtain the proper drivers or you can find your model of computer yourself.Once you have downloaded the&appropriate&drivers and installed them your system will be returned to its original factory settings. It will work just as it did the day that you bought it.Do you have any experiences & good or bad & about restoring computers back to their factory settings? Do you have any tips or advice you would like to share with us?&& If so, head towards the comments below.
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我记得在开启了这个选项的情况下按下电源键，开机不能进入UEFI设置,只能在win8系统内选择什么高级什么东西然后重启才能进入UEFI选项..那么在这种情况下..如果win8系统坏掉了，不能进入系统的话，怎么才能进入UEFI呢...
阿里云云市场镜像可以一键部署云服务器所需要的运行环境和个性化的软件应用满足建站,应用开发,可视化管理,bug跟踪管理工具等个性化需求.
我都没用过UEFI
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