Reinstalling Windows should be an easy process for you if you use Acer eRecovery Management which is included on your system.
All Acer desktops and notebooks come preloaded with a recovery partition to allow you to restore the operating system on your computer. You can use Acer eRecovery Management software to create recovery media, reinstall Windows without using CDs or DVDs, or just reinstall drivers and applications.
For directions on how to use eRecovery Management click the link in the quote, choose your operating system and then clickLearn how to restore your computer using the Recovery Management Program
So far you have done well with the steps you have taken.
As for potential problems most likely you won't have any if you follow the instructions.
Yes there are things that can go wrong. It would be impossible to highlight them all.
All I can tell you is to just do it.
edit to add: While in Recovery Management Program look for something that will allow you to create disks of the recovery partition. If you see Backup thats where you will do it from. Having a set of disks may come in handy in the future. It should prompt you with step-by-step directions. If it takes more than 1 disk, make sure you label each disk 1, 2, etc. If you have already created disks ignore this. Most manufacturers will allow only one set to be made. You can, however, make back up disks of the disks. These can also be useful if a disk gets so scratched it cannot be used.
Edited by Queen-Evie, 19 May 2013 - 12:57 PM.