There is an even easier solution, hold down Alt and press the Home key, there will be a box behind the installation page that needs your attention, had this twice yesterday on a recovery i was doing.
Awesome, I hit it and at first this did nothing. I know this thread is old, but I really, really thank you for posting this here also, so that people like me searching through google can find it quickly. (for what I Googled, this thread of one of the first results, if not the very first.)
Since it didn't work at first, I literally just started tapping the buttons and then I saw the box behind the installation. I clicked something (damn me for not paying more attention) and after the reboot the Software installation came up (stuck on Installing Office 2010... 35/48) It's been there for a couple days now. *facepalm* I thought this would have fixed it but it hadn't seemed so yet. I'm going to try it again. Because the odd thing was that it took me through the OOBE setup... but then popped up the acer software install again. It doesnt stop, and the prompt doesnt come up anymore.
Still looking for a solution...
Edit: I was skeptical at fist, and with good reason, to try the other solution posted to delete the 100mb partition. I did this, and now when I try to enter recovery I get this message "Restored failed - Error code=0x0 (WIMAppleImage cannot apply image : The operation completed successfully)
Wait what? It completely successfully? *Click OK*
System Recovery Options:
The tool failed to run. Try choosing another tool. *Click OK*
This failed. I restored the partition with a partition recovery tool. Thankfully, I already have a bit of knowledge with Windows and a few other helpful tools. Attempting the restore one more time before doing a clean install.
I do not like the other guys attitude, surprising he is still around here. Forcing a clean install down everything's throat isnt the solution to everything. Currently, I'm working on this laptop for a customer who is NOT computer savvy, and the customer would prefer all the bloatware to be on the PC (crazy I know, but it's their request) It's not my job to educate people, but my job to service their PCs. And once in awhile I come across a strange problem I cant fix I come to these threads looking for a solution. A clean install isnt really a solution, it's a shortcut around the problem, sure... but not always everyone's preference. Yes, I will whine and whine and whine.
Thanks to the other two guys for posting what they thought was a solution, but it didnt work for me this time. If trying the factory restore again doesnt work, I'll post the solution I've found here.