The acer recovery software sometimes has it's glitches. The CD might be fine, its just the data that wa written to the disk @ time of recovery creation was corrupt at some point.
If your machine shuts down randomly there can be only 3 possible solutions to this one:
- Your battery from your laptop has an issue. Try letting the laptop run on AC power ONLY.
- Your CPU is overheating, caused by a broken or unresponsive CPU heat sink fan, which causes your pc to shutdown (will always auto- shutdown at a certain temperature to prevent damage to the CPU. Check if you can feel "air" coming out of your laptop, suppose to be a hatched outlet at the side or at the back or on the top cover.
- You have a Virus that is shutting down the pc when it wants to. NO Operating system issue can cause your PC to shutdowb; only a virus can do that.
Summary, check your battery, check if your CPU fan is running, and make a virus scan (if the pc doesnt shut down). Remember to make a backup of your DATA, cause Acer (i dont think they will) don't do backups. Waranty on Acers is usually 3 years, depending on the country. So they should replace and repair, everything.