How to Create USB Flash Shell Disk
Step 1. Take one machines with Windows OS installed, plug in an USB flash disk.
Step 2. Launch “Windows Explorer” (or presses “Windows+ E”), and the USB flash disk plugged shall be shown in the arisen window as “Removable Disk” or so. Right click your mouse on it and select “Format…” to format this USB flash disk.
Step 3. In the dialog shown as below, make sure the following options are set properly.
(1) File System - Choose “FAT32”
(2) Format Options - Select “Quick Format”
And then press “Start” button to execute the formatting operation.
Click “OK” button for confirmation when the following dialog is shown, or click “Cancel” if you want to stop the operation.
When the formatting operation is finished, the dialog as below will be shown. Click “OK” to close the dialog.
Step 4. Unzip the compressed file of Shell boot package “EFI.Zip”. In the USB flash disk, create a path of “EFI\BOOT\”, and save the files “BOOTX64.EFI” in this path.
(“BOOTX64.EFI” must be saved in “ROOT:\EFI\BOOT\”!)
Step 5. Then this USB flash disk can be used as an USB Flash Shell Disk.
Ovo je deo uputstva kako flashovati acer e1-510 sa biosom koji podržava windows 7. Deo koji se odnosi na kreiranje USB Flash Shell Disk. Provereno radi

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Sve u svemu nema nikakvog budženja. Formatiraš flaš i na njega iskopiraš ***.efi fajl u ROOT:\EFI\BOOT\