... a blinking icon (the stick that blinks when typing) ...
That is properly called the cursor
When you first start the computer, watch the screen closely. Do you see a message somewhere on-screen that says something like "Press <a key> for Setup" (and the <a key> could be one of many such as F2 or DEL)? Pressing that key at that time should get you into BIOS Setup Menu
regardless of the current problem, or whether the hard drive is attached or not. Let me know which key you see as needing to be pressed, and whether or not you can access the BIOS Setup Menu using that key.Re: blank black screen with blinking cursor on startup
What you describe as happening when last using the computer, and the ensuing startup issue, strongly suggests a malware infection of the MBR (Master Boot Record). Let's have a look at the MBR.
FIRSTLY, connect the hard drive back up to the laptop!
Then, please try the following: You will need a USB drive/flashdrive and a new blank writable CD. Please do the following on a working computer:
You will use this CD to boot the ailing computer from. Boot the ailing computer with the xPUD CD.
- Download GETxPUD.exe to the Desktop.
- Run GETxPUD.exe
A new folder will appear on the desktop.
- Open the GETxPUD folder and click on get&burn.bat
- The program will download xpud_0.9.2.iso, and when finished will open BurnCDCC ready to burn the image.
Please be patient: This could take awhile - download file size 63MB.
- Click on Start and follow the prompts to burn the image to a CD.
On the working computer:
- (You may have to configure the Boot Menu or BIOS Setup Menu to boot first from the optical/CD/DVD drive.)
A Welcome to xPUD screen will appear.
- Click on File.
- Expand the mnt icon on the left (click on the little arrow beside the icon).
- sda1, sda2 etc. ...usually correspond to your HDD partitions
- sdb1, sdc1 is likely to correspond to a USB flashdrive, external USB hard drive etc.
- Click on the folder that represents your USB drive (sdb1 ?).
- Click Tool on the top menu, and choose Open Terminal.
- Type the following at the hash prompt:
dd if=/dev/sda of=mbr.bin bs=512 count=1
- Note: Leave a space between the following:
- dd ... the executable application used to create the backup
- if=/dev/sda ... the device the backup is created from (the hard drive when only one HDD exists)
- of=mbr.bin ... the backup file to create - note the lack of a path - it will be created in the directory currently open in the Terminal
- bs=512 ... the number of bytes in the backup
- count=1 ... says to backup just 1 sector
It is extremely important that the if and of statements are correctly entered.
- Press the <ENTER> key.
After it has finished a file will be located on your USB drive named mbr.bin.
- Remove the USB drive from the ailing computer.
- Insert the USB drive, and navigate to the file mbr.bin
- Zip-up the mbr.bin file:
- Right-click on the file and choose Send to .. > Compressed (zipped) Folder.
A zipped folder will appear in the same location as the mbr.bin file.
- Please attach the zipped file to your next reply.
This will allow the MasterBootRecord of your drive to be checked to see whether or not it is infected.
Edited by AustrAlien, 02 April 2012 - 04:57 PM.