Acer laptop keep restarting it self every 7 seconds once I push power button and I cant even turn it off to get it to stop.
If you hear a quick click of the dvd/cd unit, and the reboot sequence restarts all over again, endlessly. Most likely this solution will work for you.
1 Unplug the power.
2 Flip the laptop over.
3 Slid the "lock" for the battery so you see red (or the battery is in unlock).
4 Push the other slider mechanism to remove the battery, and slip the battery out of its holder.
5 Take a small Phillips head screw driver and remove the screw in the middle of the back of the laptop.
6 Slide the DVD/CD player out from the side of the laptop.
7 Complete the battery reinstall in reverse steps, plug in the A/C adapter.
7 Power up the laptop.
! Viola - No more boot loop issue.
Now you need a new DVD/CD unit (or you can try to put it back in, sometimes they start working due to a poor connection).
Why? The DVD/CD player in this laptop is a convenient place to pick the laptop up. It gets jostled around a lot. There's also a lot of heat generated right near the units. They also have poor hold down and connections as you will witness, once removed. It is a part of the boot process to check its operation, no work, no boot, it doesn't communicate well either. So it just keeps rebooting not telling you why. Since the player doesn't work, you can't use your recovery discs, lol.
Acer Aspire 5742...
17 hours ago