Problems rolling back from win 10 to 7 with lenovo laptop

Hello everyone, this is kind of a broad issue so i am really sorry if this is the wrong place but it seemed that the most urgent issue belonged here.

I have a Lenovo G770 laptop that was recently repaired from a motherboard issue with electricity, upon completion the people that did the job informed me that the startup was kinda broken (BSOD broken) so they offered me to install Windows 10 again, I said yes and when the PC arrived I noticed that the AMD card was turned off so I went to the bios and activated switchable graphics. It downloaded the drivers and the BSOD started to occur during the CCC(catalyst control center) startup thing.

I tried numerous drivers (including leshcat). And nothing. I decided that I was going to install win 7 again: I find this OEM image (home premium 64bits as it came). I first tried to install without using the DVD as boot but from the OS itself, it gave an error just at the end probably a BSOD but I took my eyes away for a minute. I tried booting from it and it did the same, then tried again and again.. noticed that in the booting options more than one win 7 option was there and a win 10, none of them work they all say the same: something along the lines of "there was an error restart and try again".

So I'm stuck, I need help please, that is my only pc and I work from there. I want to get back to win 7.

PD: it used to work with win 10 perfectly not this time tho.

Edit: i ran around the internet all night, I found 2 things, in many places it said to reset to default bios and to disconnect USB stuff and i had a wireless mouse connected.

I did both at the same time and voilà it's sitting there in the desktop, now I just need to deal with the quadruple boot issue.

luisdjt said:

Hello everyone, this is kind of a broad issue so i am really sorry if this is the wrong place but it seemed that the most urgent issue belonged here.

I have a Lenovo G770 laptop that was recently repaired from a motherboard issue with electricity, upon completion the people that did the job informed me that the startup was kinda broken (BSOD broken) so they offered me to install Windows 10 again, I said yes and when the PC arrived I noticed that the AMD card was turned off so I went to the bios and activated switchable graphics. It downloaded the drivers and the BSOD started to occur during the CCC(catalyst control center) startup thing.

I tried numerous drivers (including leshcat). And nothing. I decided that I was going to install win 7 again: I find this OEM image (home premium 64bits as it came). I first tried to install without using the DVD as boot but from the OS itself, it gave an error just at the end probably a BSOD but I took my eyes away for a minute. I tried booting from it and it did the same, then tried again and again.. noticed that in the booting options more than one win 7 option was there and a win 10, none of them work they all say the same: something along the lines of "there was an error restart and try again".

So I'm stuck, I need help please, that is my only pc and I work from there. I want to get back to win 7.

PD: it used to work with win 10 perfectly not this time tho.

Edit: i ran around the internet all night, I found 2 things, in many places it said to reset to default bios and to disconnect USB stuff and i had a wireless mouse connected.

I did both at the same time and voilà it's sitting there in the desktop, now I just need to deal with the quadruple boot issue.

Quadruple boot issue?

Could you explain a bit more so that we can help you in the best possible way?

/Boris :)

luisdjt said:

Hello, thanks for replying. I actually don't know how to call it but I'm sure there were at least 4 boot options when I tried to install win 7, as I said earlier they're BSOD failed installs, and also a win 10 one for some reason which acts as a win 7 failed one. The last one worked today at dawn when I tried those things I said, but I didn't have the time to check if those boot options were still there, they probably are so I want to get rid of them.

Hi luis,
You will need to hit F2 upon booting the laptop which will take you to the BIOS screen and inside the BIOS you need to locate the Boot configuration, in some BIOS's it's simply named Boot as a tab but on others you might have to go to the Advanced tab and search for it there.

I wish you luck. Cheers Boris :)