Windows 10: Computer Problems . . .

Both of my computers, are Dell laptops.Running, Windows 10.Cortana is taking me through the setup,of a new Windows 10 computer.It asks for my, email address.I put that in, no problem. Then it asks for, my password. So I enter my Windows account, password. And it says. The password doesn't match,the email address, you entered?I've used this password, 100's of times?I know, it right! Then it says.If you can complete the rest,of your email address.They will send me, a code. By, email.Fortunately I have, another computer.I get, the code. I put it, in. Then, it says. No the code, is 7 numbers? And

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Need some advice on computer problems.

Run HDtune (free version) on you hard drive. but most likely that the problem. You can also test your memory with Memtest86 as suggested above

You didn't list your OS

 

Does this computer build have compatibility problems? Opinions welcomed!

Lets start with what you're going to use this computer for, not what you want to put in it.

Rules/steps to building a computer (in chronological order):
First rule: Determine what your needs are.
Second rule: Define your budget.
Third rule: Pick parts.
Fourth rule: Review parts several times.
Fifth rule: Buy said parts.
Sixth rule: Build it.

You are on rule/step 1. Go through the list until you're done.

 

Windows 10 1709 System Restore problems...

That seems to be an attempt at Option 2 in the tutorial, which requires you to
a. Boot to a command prompt (Did you?)
b. You then seem to be mixing steps 3,4 and 5, thus your command is incorrect.

I suggest Option 1 is easier.

If you still have problems, please repost listing each specific step and saying which option from the tutorial you are using. Thanks.