Need to take laptop back to factory setting

I think you need to reload windows with a operating system disk. Most times the Factory Recovery discs don't work.

Get a windows operating system disk and just reload windows. The disk must match the Certificate of Authentication (COA) sticker on the bottom of her laptop. In other words, don't use a Windows XP Home operating system disk if the COA sticker says Windows XP Professional or you'll never be able to activate windows.

There are two basic ways to restore Acer 5315 PC Notebook to the original setting. The first method you can try to pressing the key Alt + F10 for 5 times while startup process appears on the Acer screen. Usually this way will restore the original setting automatically.
And the next method you may need to use system restore at the first time you’ve got your Acer 5315 laptop. Here are steps to follow:
Log on as the Administrator => Start => All Programs => Accessories => System Tools => and click the System Restore. System restore will run and here you should see the Welcome System Restore page appear. Click Restore my computer button to an early time if it’s not already
selected. Click next to continue the steps.
There is on your Acer 5315 laptop screen a Restore Point page appear, you can select it and then click the most recent system checkpoint it, click a restore point list. After you click the Next button, System Restore message may appear that lists configuration changes that
System Restore will create. Click OK.
For the last step click next button on the Confirm Restore Point Selection page. Now the ‘System Restore’ will restore the previous Windows XP configuration on your Acer 5315 OS system. Just finish it by restarts your Acer laptop.
Now log on again to your Acer 5315 PC Notebook as Administrator and watch the System Restore Restoration Complete page

JAIN_IT {INDIA}

it seems u have done every try.So now i recommend u too backup ur necessary files and install a fresh copy of windows via cd.
I recommend u to use xp or windows 7.

There are two basic ways to restore Acer 5315 PC Notebook to the original setting. The first method you can try to pressing the key Alt + F10 for 5 times while startup process appears on the Acer screen. Usually this way will restore the original setting automatically.
And the next method you may need to use system restore at the first time you’ve got your Acer 5315 laptop. Here are steps to follow:
Log on as the Administrator => Start => All Programs => Accessories => System Tools => and click the System Restore. System restore will run and here you should see the Welcome System Restore page appear. Click Restore my computer button to an early time if it’s not already
selected. Click next to continue the steps.
There is on your Acer 5315 laptop screen a Restore Point page appear, you can select it and then click the most recent system checkpoint it, click a restore point list. After you click the Next button, System Restore message may appear that lists configuration changes that
System Restore will create. Click OK.
For the last step click next button on the Confirm Restore Point Selection page. Now the ‘System Restore’ will restore the previous Windows XP configuration on your Acer 5315 OS system. Just finish it by restarts your Acer laptop.
Now log on again to your Acer 5315 PC Notebook as Administrator and watch the System Restore Restoration Complete page appears. Click OK.

you can try hiren's BootCD, it's can fix MBR or re-format using this cd.

I assume the LAN card is built-in therefore
Go to the Acer WEB site to download the drivers you need, make sure it is Windows XP or Vista version for your particular MODEL laptop.

Use this link :-
http://global.acer.com/support/download.htm

Is it control + F10, or is it alt + F10?

There are two basic ways to restore Acer 5315 PC Notebook to the original setting. The first method you can try to pressing the key Alt + F10 for 5 times while startup process appears on the Acer screen. Usually this way will restore the original setting automatically.
And the next method you may need to use system restore at the first time you’ve got your Acer 5315 laptop. Here are steps to follow:
Log on as the Administrator => Start => All Programs => Accessories => System Tools => and click the System Restore. System restore will run and here you should see the Welcome System Restore page appear. Click Restore my computer button to an early time if it’s not already
selected. Click next to continue the steps.
There is on your Acer 5315 laptop screen a Restore Point page appear, you can select it and then click the most recent system checkpoint it, click a restore point list. After you click the Next button, System Restore message may appear that lists configuration changes that
System Restore will create. Click OK.
For the last step click next button on the Confirm Restore Point Selection page. Now the ‘System Restore’ will restore the previous Windows XP configuration on your Acer 5315 OS system. Just finish it by restarts your Acer laptop.

acer dont have a restore, you are prompted when you first boot it up when purchased to make a back up set of discs, i assume you didn't, you will need to lend somebodies XP or Vista Disc , but use your own product code on the underside of your notebook to reformat and reinstall windows.

You can install windows in any computer and hardware shop neear your area or the best is get it done from (nehru place) The ITHub of india .....

They will charge you Rs 300 approx

Regards
Balisonu79