I have an emachines t5082 with vista basic that won't boot. I can see the emachines logo, and can get to bios or the boot menu, but cannot get to the safe mode screen. Also can't find the disks that came with it. Is there a way to download a restore disk that will save data & repair the vista?

Step 1:
All computer systems go through a set of instructions called the Basic Input/Output System (BIOS) when they are turned on. The BIOS checks all of the hardware and software installed on the computer to make sure they are working properly before loading the operating system. You may need to access the BIOS menu periodically to find out the current version of the BIOS you have if there are upgrades available. The command you use to access the BIOS settings on an Emachines computer will vary depending on the specific model you have.

Access the Start menu and click "Shut Down." Select the "Restart" option. Wait for the Emachines logo to appear on the screen as the computer begins booting up again. Press the "Tab" key when the logo appears and see if the computer switches to the BIOS menu. Press the "Escape," "Delete," or "F2" keys if the "Tab" key doesn't take you to the BIOS menu screen. Use the right arrow key to highlight the "Main" entry and press Enter. Scroll down to the heading labeled "BIOS version." Check the long string of numbers and letters under the "BIOS version" heading to locate the current BIOS version your Emachines is using. Press the "F10" key to exit the BIOS menu screen and finish booting up the computer's operating system.
Access/Enter Motherboard BIOS http://michaelstevenstech.com/bios_manufacturer.htm

If you're using a VGA monitor, select to start up using VGA mode.

there should be a boot menu command at start up just like you entered the system bios, i believe the e machine boot command is F12 that will give you the opportunity to boot from what ever you want on that boot only. so in your case of course you would scroll down to cd and hit enter. press any key to boot hit any key and boot.

you have to enable multi boot first

a clean install of your or a new OS should fix all those problems

problem will be with low watt supply, check the manula of graphic card, and use the power supply of the recomanded Watts

For that you need recovery disk or winxp or vista bootable disk.
Then boot your computer with disk.
When you power up the computer press F1 or F2 or "del" key to enter in bios.Then go to boot menu then set first boot device as your cd / dvd rom.
Then save and exit .
Then it boot with disk.
Then follow the procedure and if you want previos windows then choose "r" option for repair.
Let me know if you need further assistance.
Thanks.

http://www.emachines.com/support/product_support.html?cat=Desktops&subcat=T%20Series&model=T5082

or

http://www.emachines.com/support/product_support.html

Paste into browser address bar

You must find "eMachine" XP USB drivers for your computer.
If all USB support is "enabled" in BIOS, the conflict is with drivers.
XP is loaded with many generic drivers, however eMachines is proprietary and requires eMachine drivers for most on-board hardware.

Contact eMachines support to locate the drivers (if available).

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Are you able to see the DVD +R/RW drive in windows explorer?