No internet connection after I turned my laptop into wifi hotspot

That's right. I used ICS years ago before I had a router and hated it so don't even think of that option now.

Sorry, it seems like I wasn't very clear.

The scenario is actually like this:
1) My laptop is connected to the Ethernet port (network cable)
2) My tablet only has wifi capability (no 3G, no 4G)
3) To allow my tablet to have internet capability, I need a wifi, thus the laptop hotspot.
4) Yes, I can just use another wireless, but there are no wireless signals anywhere nearby. Thus the laptop hotspot.
5) When I tested the tutorial, I had both wireless (let's call this 'amig') and cable internet (let's call this ether) at home. Therefore, both devices can connect to wireless.
6) When I turned the laptop hotspot on (let's call this 'shin'), my laptop lost connection to my internet wifi (no amig).
7) When I switched the connection on my tablet from my home internet wifi (amig) to hotspot (shin), I got a wifi connection, but no internet.
8) I turned off 'shin' on my laptop and looked at 'amig' again. 'Amig' tells me that I have wifi but no internet connection.
9) I turned the tablet back to 'amig' connection. It worked fine.
10) I restarted my laptop and retraced my steps, cancelling everything I did, but still, 'amig' tells me that I have no internet connection.
11) I posted the question using my tablet on 'amig' connection, because my laptop that connects to the same wifi tells me that 'amig' doesn't have internet. But my tablet can use internet just fine.
12) I reverted my laptop to an earlier setting using system restore. Problem solved.

13) Now, let's get rid of 'amig'. Now I'm left with 'ether', since my new workplace doesn't have 'amig', only 'ether'.
14) Sure, I can use 'ether' now, at my home now, but I wasn't testing 'ether'. I was testing whether or not my laptop can create 'shin' for my tablet to use assuming that my laptop is connected to 'ether'.
15) What's the point if I can create one single wifi hotspot when my laptop ends up not being able to catch wifi whenever there is one later?

16) My question wasn't about whether or not it's feasible or redundant. My question is, what happened?
17) Why did 'amig' tells my laptop that it's not connected to internet when it says to my tablet that the internet was top speed?

18) Again, I state that I'm using Windows 7 Home 64bit and prior to following the tutorial, my wifi adaptor worked just fine.

6) When I turned the laptop hotspot on (let's call this 'shin'), my laptop lost connection to my internet wifi (no amig).
7) When I switched the connection on my tablet from my home internet wifi (amig) to hotspot (shin), I got a wifi connection, but no internet.

This seems to indicate that the wireless card of the laptop isn't using proper drivers.
Find drivers for that card that aren't from microsoft and install them. (microsoft ones are generic and work on tons of devices, but lack advanced features like the ones needed to use the card to connect to a wifi router AND run a wireless hotspot at the same time)

Also, in a more realistic situation, where you have only wired network, you must go into
Control Panel > Network and Internet > Network and Sharing Center > Change Adapter Settings then rightclick on your Ethernet card, select properties and then go to the Sharing tab, and select "allow other network users to connect using this computer's internet connection". As that is the card connected to Internet.

Again, if your Ethernet network card properties panel does not have that "sharing" tab, download the drivers for that specific device as Microsoft's generic ones cannot do that.

15) What's the point if I can create one single wifi hotspot when my laptop ends up not being able to catch wifi whenever there is one later?

You have to shut down the wireless hotspot, from network and sharing center, you find the hotspot network and click "disconnect". Then the wifi card is back to its usual job.
If you have the right drivers (see above), you can use the card to make the hotspot AND connect to a router. At least I think. Never needed that.

Btw, the tutorial you linked sucks.
Win 7 has already a handy wizard to set up a hotspot without doing wonky things with terminal.
This tells you how to use this handy feature.

bobafetthotmail said:

6) When I turned the laptop hotspot on (let's call this 'shin'), my laptop lost connection to my internet wifi (no amig).
7) When I switched the connection on my tablet from my home internet wifi (amig) to hotspot (shin), I got a wifi connection, but no internet.

This seems to indicate that the wireless card of the laptop isn't using proper drivers.
Find drivers for that card that aren't from microsoft and install them. (microsoft ones are generic and work on tons of devices, but lack advanced features like the ones needed to use the card to connect to a wifi router AND run a wireless hotspot at the same time)

Also, in a more realistic situation, where you have only wired network, you must go into
Control Panel > Network and Internet > Network and Sharing Center > Change Adapter Settings then rightclick on your Ethernet card, select properties and then go to the Sharing tab, and select "allow other network users to connect using this computer's internet connection". As that is the card connected to Internet.

Again, if your Ethernet network card properties panel does not have that "sharing" tab, download the drivers for that specific device as Microsoft's generic ones cannot do that.

15) What's the point if I can create one single wifi hotspot when my laptop ends up not being able to catch wifi whenever there is one later?

You have to shut down the wireless hotspot, from network and sharing center, you find the hotspot network and click "disconnect". Then the wifi card is back to its usual job.
If you have the right drivers (see above), you can use the card to make the hotspot AND connect to a router. At least I think. Never needed that.

Btw, the tutorial you linked sucks.
Win 7 has already a handy wizard to set up a hotspot without doing wonky things with terminal.
This tells you how to use this handy feature.

You do realize that I have already mentioned the part in bold.

The drivers for the wireless adaptor need to be Microsoft certified WHQL drivers in order to have the Microsoft Virtual WiFi adaptor which is required to support a hosted wireless network. You need that in order to be connected to the internet and support the hosted wireless network.

The problem is that it seems the Op is attempting to create a hosted wireless network from an Ethernet connection and from what I can see none of those tutorials cover that but I do think it's possible with the right settings.