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Windows 7: Black screen at boot

21 Oct 2009   #11
smarteyeball

 
 

Do you have an a/v installed that may be doing a scan at start up?


My System SpecsSystem Spec
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21 Oct 2009   #12
Memphiz

Windows XP, Windows Vista, Windows 7
 
 

I have AVG Anti-Virus Free installed on my computer.
I have it installed on another computer, and with that one i don't have the problem.

So i gues it is not the solution...
My System SpecsSystem Spec
21 Oct 2009   #13
new

windows 7 64 bit
 
 

Quote   Quote: Originally Posted by torrentg View Post
To New: Remove any 2nd or 3rd monitors including any televisions from the computer. Now boot into Windows.
Thanks, there isn't anything attached to the Laptop. I posted earlier that I had a similar problem after flashing BIOS after which my computer would only boot after I removed one of the RAM modules. After flashing BIOS again with an old version I found that I could but all the RAM back and the computer worked fine again. BIOS haven't been flashed on the laptop but I am wondering if it could be a similar problem. I have noticed a lot of complaints similar problem with HP Pavillion DV 6700 Laptops not booting.
My System SpecsSystem Spec
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21 Oct 2009   #14
smarteyeball

 
 

Quote   Quote: Originally Posted by Memphiz View Post
I have AVG Anti-Virus Free installed on my computer.
I have it installed on another computer, and with that one i don't have the problem.

So i gues it is not the solution...
Perhaps. It depends on wheter AVG enables start up scanning as default (I know Avast does).

It may be worth a quick double check as some A/V's have the start up scan enabled on installation.

Has Seven always been slow to load (since the first use), or is a recent occurrence?
My System SpecsSystem Spec
21 Oct 2009   #15
aem

Windows 7 Ultimate 64Bit
 
 

How much RAM do you have?
My System SpecsSystem Spec
21 Oct 2009   #16
Memphiz

Windows XP, Windows Vista, Windows 7
 
 

Smarteyeball: 1. How do i check if AVG enables start up scannning?
2. Since i installed 7 it worked great (no black screen), but after a few days it suddenly happened every time i start 7

aem: I have 512 MB RAM... this should be enough?
My System SpecsSystem Spec
21 Oct 2009   #17
smarteyeball

 
 

Quote   Quote: Originally Posted by Memphiz View Post
Smarteyeball: 1. How do i check if AVG enables start up scannning?
Have a look through AVG's options. It could be called rootkit scan, memory scan on system start up, or something similar.

Quote:
2. Since i installed 7 it worked great (no black screen), but after a few days it suddenly happened every time i start 7
So if no external hardware has been added (external hard drive etc), then it's fair to say that it's a software issue - which I think you may have already guessed

Does the machine start in safe mode okay?

Does it tkae a long time every time you start, or only on the first boot of the day?

(If it's only once, then it sounds like a scheduled service. If it's every time then..... it's something else

Quote:
aem: I have 512 MB RAM... this should be enough?
Not really But it shouldn't cause a sudden delay while loading Windows.
My System SpecsSystem Spec
21 Oct 2009   #18
aem

Windows 7 Ultimate 64Bit
 
 

Hmmm 512MB is your total system RAM? I'd say that could be one of the issue why it takes a while to boot up. Once boot up, how does the system run? can u give us the performance stats?

Btw, does Xp also takes abit of time?
My System SpecsSystem Spec
21 Oct 2009   #19
aem

Windows 7 Ultimate 64Bit
 
 

Quote   Quote: Originally Posted by smarteyeball View Post

Not really But it shouldn't cause a sudden delay while loading Windows.
It's not a sudden delay, it's a delay to bring up the desktop, i would think at this stage the system is loading and configuring the desktop.

Try testing xp mode with 128Mb vs 256mb vs 512mb and see the difference.
My System SpecsSystem Spec
21 Oct 2009   #20
Memphiz

Windows XP, Windows Vista, Windows 7
 
 

I can boot in safe mode, but i don't know if i have the black screen also... i would have to test it.
I get the screen every time i boot my pc... so not only in the morning or something.

aem: what do you mean by performance tests?
XP boots fine, no delay

I get the screen before i log in.. so it can't be the loading and configuring of the desktop?? or am i thinking wrong...

Windows 7 is running fine when it is started..
It could be the RAM problem... but isn't it strange that in the first few days i have used windows 7, i didn't have the black screen problem?
My System SpecsSystem Spec
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 Black screen at boot




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