Welcome screen load time or black screen with a cursor

[theHappie]

Hello,

I bought a new computer in September, Dell N5050. The first problem occurred in November, I made prntScr: http://i49.tinypic.com/2gsjp5y.png
This problem is solved: I thought it's a virus, I downloaded Advanced SystemCare (I had McAfee) this scanned my computer and found a four Trojan.

Then came a new problem.
I turn on computer, starting windows, black screen with a cursor about 8-9 minutes, log on and welcome screen loading about 5 seconds.
OR
I turn on computer, starting windows, black screen with a cursor about 1-2 minutes, log on and welcome screen loading about 6-7 minutes.

I really don't know, what it depends on.
What is problem? How I can fix it?

PS: my native language isn't English. Sorry for mistakes.
PS: I have Windows 7 Home Premium 64bit.

Thanks,
theHappie.

 

[bobafetthotmail]

First thing I'd do is getting rid of Advanced System Care. It's a system optimizer, and Windows 7 does not like optimizers. I'd bet that it is responsible of the slow start.

Second, ASC isn't an antivirus, or if it is I never heard of it. Which isn't a good sign. Install a good antivirus and run a full scan, I like Avira (my favourite, which is free and nuked all evil things I threw at it), but other people like Microsoft Security Essentials (again free, but less powerful than Avira).

 

[theHappie]

No, ASC was before startproblem. This doesn't cause it.

I downloaded Avira and I done full scan - it did not find anything.

 

[theHappie]

Help?

 

[theHappie]

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