I recently ordered the recovery disks for my W510, but it took days of trawling forums to get through the process. I wanted to make a post with complete instructions for other users. Hopefully this helps, and you won't have to do as much research.
Part 1 - Create bootable NTFS thumb drive formatted with fat32...don't worry this is easy
*** Using regedit ***
1. Windows key + "R" opens "Run"
2. Type diskpart Enter
3. list disk Enter
4. select disk # Enter (look at the list of disks to decide which one is your thumb drive)
5. clean Enter
6. create partition primary Enter
7. select partition 1 Enter
8. active Enter
9. format fs=fat32 quick Enter (this step will take a few minutes)
10. assign Enter
11. exit Enter
Part 2 - Copy ALL 4 recovery disks to the thumb drive. Do not burn .iso's, do not try anything fancy. Simply insert the disks into an optic drive on another machine, open to view files, and COPY AND PASTE to the thumb drive.
*** I used a 32-gig thumb drive. My disks would NOT fit on a 4 gig; not even close! ***
*** IF YOU HAVE 2 RECOVERY DISKS (that's system + language + recovery 1 + recovery 2) make sure you open RCD.DAT with a text editing program. Find the line that says "PCS = 2" and change it to "PCS = 1" Save, then proceed with copying and pasting. This will fix the problem some people (me) had with the recovery making it to 98% then asking for another disk.
Part 3 - Edit tablet BIOS
1. Press the power button + volume down
2. Create an administrator password
3. Disable Safe boot and make sure enable F12 on boot is selected
4. Change the priority boot to USB hard drive on top
5. Exit, saving changes
Part 4 - Recovery
1. With the machine powered off, insert the recovery USB you created into the micro USB port using the adapter cable that came with the tablet. You may also need a USB mouse depending on if you have updated drivers. Plug this into the dock USB port.
2. When you get to the Acer logo screen, hit F12.
3. You get to a boot menu screen, select the thumb drive.
*** My tablet got stuck after this on the Acer logo screen if it was plugged in. It worked as long as it was NOT plugged in and charging. ***
4. Go through the recovery prompts and don't stop praying until it's done!
*** If your tablet asks to insert the System disk at the end of the recovery process, but will not recognize that it is already on the USB, power off your tablet and reboot WITH THE USB STILL PLUGGED IN. The system recovery will proceed from where it left off and recognizes the System disk. ***