How to add more than default windows 10 boot by creating boot option?

budi · 24 Nov 2017

How to add more than default Windows 10 boot by creating a boot option on the OS startup ?
The OS booting in a partition lettered C as usual

Now a partition, lettered E:, is readily prepared to launch the windows 10 installation in typical size around 3.3 GB after the extract of the iso file in installation CD

It'd be nice for a user to just restart windows, choose and run the installation if malware has destroyed his current running system.
Now, how is it to make it work, as Windows multi boot option on startup here is the only method for launching it ?

dalchina · 24 Nov 2017

if malware has destroyed his current running system.

Take a different approach which keeps everything away from the infected disk: use disk imaging routinely to secure your OS (and any other partitions or disks as we keep recommending).

E.g. Macrium Reflect (free) + external storage for disk image sets.

If your disk fails or is unbootable or attacked by ransomware- restore your disk image. Gives you a second chance when something bad happens without needing technical help.

topgundcp · 24 Nov 2017

Take suggestion from @dalchina, use Macrium. However, to answer your question. Here's how it works:
Copy and paste the code and save it to a file on desktop, ex. mkdual.bat then right click to run as Admin
NOTE: in the code, assuming you have Windows Installation in the root of E: drive.
use only one line in red, use winload.efi if your Windows installed with GPT disk
else use winload.exe for MBR disk.

Code:

echo off
echo Configuring Dual boot Windows 10 Installation
bcdedit.exe /CREATE {ramdiskoptions} /d "Ramdisk Options"
bcdedit.exe /SET {ramdiskoptions} ramdisksdidevice partition=E:
bcdedit /set {ramdiskoptions} ramdisksdipath \boot\boot.sdi
for /f "tokens=2 delims={}" %%g in ('bcdedit.exe /create /d "windows 10 Installation" /application osloader') do (set guid={%%g})
echo GUID = %guid% created !!!
bcdedit /set %guid% device ramdisk=[E:]\sources\boot.wim,{ramdiskoptions}
bcdedit /set %guid% osdevice ramdisk=[E:]\sources\boot.wim,{ramdiskoptions}
bcdedit.exe /SET %guid% systemroot \windows
REM ========== Use this line below if your Windows installed using GPT ==========
bcdedit /set %guid% path \Windows\system32\winload.efi
REM ========== Use this line below if your Windows installed using MBR ==========
bcdedit /set %guid% path \Windows\system32\winload.exe
bcdedit.exe /SET %guid% winpe yes
bcdedit.exe /SET %guid% detecthal yes
bcdedit.exe /SET %guid% nx OptIn
bcdedit /displayorder %guid% /addlast
bcdedit /timeout 5
echo "Done... Reboot your PC"
pause

Reboot. You should have a menu with Windows 10 & Windows 10 Installtion.

budi · 24 Nov 2017

@topgundcp
Can you repeat giving the code again, please... your code is not clear, don't have the newline

Also I really don't understand :
NOTE: in the code, assuming you have Windows Installation in the root of E: drive.
use only one line in red

I said:
Now, a partition lettered E:, is readily...

Will it work for "the first start of partition E:" instead of "the root of E: drive. " ?

and I simply didn't get :
use only one line in red

Please help me do me a favor, I am really grateful for your benevolence..

cereberus · 24 Nov 2017

AddRAM said:

Norton Ghost is another great choice. But not free.

Norton Ghost - Download

No way!!!

Norton Ghost has not been supported for many years and does not even support UEFI installations which is vast majority of Windows 10 installations these days.

Use Macrium Reflect Free which is far superior (we have tutorials in tutorial section) and as name implies it is FREE!

AddRAM · 24 Nov 2017

I haven`t used it since school, my bad, post removed.

I should have suggested Macrium too, Macrium rocks.