Black line next to the cursor

up !

Here is the translation you requested: Lu'

In the control panel, there is certainly a "mouse" icon, so double-click on it and check the cursor image settings.

Hello, thanks for your response, but you see, if it were just the black line
that wouldn't have been a problem for me, the thing is that since I've had this
(my PC turned off and on by itself before), all the videos
and games are showing a black image or a greyish mode with a multitude of
colors. When I watch a video in small screen it's fine,
there are just tiny lines, but in full screen it's a complete distortion.
So I wanted to know if there was any way to fix this, it's the weirdest problem I've had.

Thanks again.

Hello, if in safe mode you find nothing, it could be due to a virus or Trojan because a screen LED problem wouldn't have drawn such nice diamonds like that, so it's not a hardware issue "a video card problem" but rather software. Run your antivirus, scan and eradicate all that in safe mode. Do a restoration to an earlier date first to see the result. When downloading a movie or game from an illegal site, you risk getting a virus like the one from the Gendarmerie. I'm not a fan of the ZHPDiag diagnosis, others may guide you.

Hello, thanks for your response,
so to start, I wanted to
do a system restore
but I don't have any backup points..
But you see, I think you might be
right because to get rid of this,
I did a little test by putting the installation CDs
of Windows XP, and
the problem was resolved.

I switched back to Vista, and I had this problem again.

By the way, I want to point out that I don't have an antivirus
and so far I have been deleting them myself.

Can you recommend a free antivirus that can help
me get rid of this problem?
Thanks for the ultra quick response.

I downloaded Avast, I'm going to run scans, remove viruses hoping I have some... But mostly hoping I have trojans (yes I know it's strange
to hope to have viruses but at least I'll know where the problem comes from and tackle it).

I'll keep you posted, my friend :-)

You're welcome,
free antivirus is not easy to advise you on as they all have their advantages and disadvantages; free usually means limited time and especially throttled performance, so don't expect complete eradication from your system. The only advice I can give you is to install an antivirus on your machine to avoid a conflict.
Now
if you have an official Windows license key activated by Microsoft, you have Microsoft Security Essentials, which is free supposedly because you paid for the license provided via Windows Update and Microsoft .NET Framework for system stability. Make sure to update it and make it work, check if the firewall is enabled as it slows down the entry of unwanted software. Avast might ask you to disable the Windows Firewall during its installation, which is a risk.

It's true that you are not wrong on that side.
Well, saying that for the moment our little Avast
hasn't made any requests regarding the firewall.
I've run 4 scans, of which 1 is finished, the one on removable
drives, which for me represents the least risk of being attacked by a virus.
The quick scan is currently at 40%, and regarding the slow scan,
it's only at… 0%, oh dear!

And regarding the license for one of the antivirus programs mentioned, I could
get one through the means at hand (the means of the web).
Of course, having an antivirus with an expiry date wouldn't really bother me, but if its performance decreases, then that could be a major drawback.
Hoping that my virus isn't of a high level so I can remove it with the logs borrowed from the web.

So here's a little report on the situation.
Seeing the crazy amount of time Avast was taking
to do a full scan (1% in 3 hours..)
I decided to delete all the logs, video files, images, etc.
that I no longer needed from my PC.
I gained 200GB (wow).
And I took a little tour on CCleaner.

I'm at 38% and already 9 infected files, we're on the right track.
Hoping that the problem will be resolved right after.
I'm doing a system defragmentation at the same time.
I'll keep you updated on the results.
If the problem isn't resolved, I'll do a scan
archive by archive.

Okay, try an essay to see its result.
You can also use the Vista tools to repair system files "sfc /scannow" run as Administrator.
Sometimes, but not always, Windows will request you to insert the DVD.

Sfc/scannow is it on CMD? Or search/run?
And what exactly will the system file repair be for?
I'll wait until I've finished my scan before anything.

http://www.vista-xp.fr/forum/topic346.html
Here is the procedure.
To repair damaged files.

Hello,
so here is my verdict..

After doing all the necessary tweaks,
I ended up clinging to Flash Player.
I thought the problem was probably with
that since my antivirus scan
showed some blocks with Flash Player 11.

But here I am, I deleted everything and reinstalled but without
result. And that’s when I had a click, what if the problem just came from my DirectX?
I typed regedit and deleted everything related to
DirectX 11 to reinstall it, but reinstalling it, well, it's not that straightforward ;/

After that, I wanted to boot my PC in safe mode,
and since I have no display issues in safe mode, that's when I noticed in 'dxdiag/display'
that my DirectX features:
DirectDraw
Direct3D
AGP Texture Acceleration
are not available..

So my problem probably comes from DirectX 11.

Or rather from one of these tools: DirectDraw, Direct3D, AGP Texture Acceleration.

So here it is, if anyone could tell me 'HOW' to fix or reinstall
these software, that would be great.
I'm counting on you FISQS!

I will continue my research on my side, I’ll keep you posted.

I would like to clarify that in normal Windows boot,
these DirectX features are available, which is why
I have display issues in normal boot.

UP, how do I reinstall my DirectX 11 on Vista?

Or rather, how do I reinstall my DirectX features,
there are quite a few missing or corrupted DLLs in my system32
regarding my DirectX, is there a way to get a copy
of all the dll.exe files of DirectX 11 so that I can copy and replace
them in my system32? Or is there a reinstallation method for DirectX 11?

UP

Via WINDOWS UPDATE, perform an update for a new Service Pack; all new features are in Service Pack 1, 2, or 3.
https://support.microsoft.com/fr-fr/help/929427/the-windows-vista-application-compatibility-update
Have an official license with your product activation key after the complete installation of VISTA on the machine.
MICROSOFT will detect whether the version is genuine or not.