Surface Pro 3 booting problem

Question

I am trying to recover windows 10 and have created the boot drive. After following the instructions it is not booting up. When I release the (-) key on site of the Surface logo it keeps taking me to the set up on a black screen. Now it has stopped doing that and says "secure boot violation" Invalid signature detected.Check secure boot policy in set up. ??????

Answer 1

Try a different USB stick. These are the instructions you should use. Please
confirm this is what you do.
Go to https://support.microsoft.com/en-us/surfacerecoveryimage   (with a different Windows computer if yours is not working properly)  and download a recovery image for your Surface. You will need a 16GB or 32GB USB
stick (also called a flash drive) formatted FAT32 (use a Windows computer).  You
can't use an actual external USB hard drive for this. Best to purchase and use a
new, previously unused USB stick for this. Use FULL format and not quick format
and give the volume a name like surfboot. Unzip/extract the recovery zip to the
root of the formatted USB stick and then-

To reset your Surface from a USB recovery drive:
Step 1:    Make sure your Surface is turned off and plugged in (hold down the power
button for 30 seconds).
Step 2:     Insert the USB recovery drive into the USB port on your Surface.
Step 3:    Press and hold the volume-down button while you press and release the
power button on your Surface.
Step 4:     When the Surface logo appears, release the volume button.
Step 5:    When prompted, select the language and keyboard layout you want.
Step 6:     Select Troubleshoot > Reset your PC.
If prompted for a recovery key, select Skip this drive at the bottom of thescreen.
Step 7:     Select the target operating system you wish to reset. This
refers to the current operating system installed on your Surface.
Step 8:    Select Yes, repartition the drives, and on the next page, select Next.
Step 9:     Choose Just remove my files.
Step 10:    Select Reset.
Surface restarts and the Surface logo displays while the reset process continues
(this can take a while).

Answer 2

Thank you for your reply I will need to re try when I have purchased another flash drive. Fingers crossed!!

Answer 3

Did you get a new USB stick and try the official recovery image?

Answer 4

Hi ..... Yes I have tried with a new Flash drive formatted to fat32 and down loaded the recovery image from microsoft after entering my serial no. 

I then copied and paste on to my flash drive.

1st attempt>>

I followed the process all the way to > reset this PC > and it says "getting ready" with a spinning circle but goes no further

2nd Attempt>>

Again followed the steps below down to step 7:-

To reset your Surface from a USB recovery drive:

Step 1:    Make sure your Surface is turned off and plugged in (hold down the power

button for 30 seconds).

Step 2:     Insert the USB recovery drive into the USB port on your Surface.

Step 3:    Press and hold the volume-down button while you press and release the

power button on your Surface.

Step 4:     When the Surface logo appears, release the volume button.

Step 5:    When prompted, select the language and keyboard layout you want.

Step 6:     Select Troubleshoot > Reset your PC.

If prompted for a recovery key, select Skip this drive at the bottom of the ****screen.

Step 7:     Select the target operating system you wish to reset. This

refers to the current operating system installed on your Surface.

This is what is on a blue screen

RESET THIS PC

"UNABLE TO RESET YOUR PC. A REQUIRED DRIVE PARTITION IS MISSING"

Can't go any further!!!!!!!!

Answer 5

I'd like you to try the Surface Data Eraser (the documentation is at
https://docs.microsoft.com/en-us/surface/microsoft-surface-data-eraser )  the
download itself is at
https://www.microsoft.com/en-us/download/details.aspx?id=46703  
Doess this complete successfully or not? If yes, try the recovery image again.