No AMD graphics driver is installed, or the AMD driver is not function

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So the other day i was trying to update my pc as i was a bit behind on updates ,so i updated everything on my pc. it was after this i encountered a problem with the driver signing saying this:

Program Compatibility Assistant
Windows requires a digitally signed driver.
A recently installed program tried to install an unsigned driver. This version of Windows requires all drivers to have a valid digital signature. The driver is unavailable and the program that requires this driver might not work correctly.
Uninstall the program or device and check the publisher's support website to get a digitally signed driver.
Driver: ATI Radeon Kernel Mode Driver
Service: amdkmdag
Publisher: Advanced Micro Devices, Inc.
Location: C:\Windows\System...\atikmdag.sys

now my pc screen has gone to a very low resolution and nothing is working nicely, and it been a real pain for me for 2 days now i hope you guys can help thanks :) .

my pc specs:
amd fx 4100
xfx radeon hd 6870
windows 7 ultimate x64
 

My Computer My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
custom build
OS
windows 7 ultimate 64bit
CPU
amd fx 4100
Motherboard
Asus M5A97 R2.0
Memory
corsair xm3 2x2gb
Graphics Card(s)
amd radeon hd 6870
Monitor(s) Displays
samsung s22c300
Screen Resolution
1920x1080
Hard Drives
Western Digital Caviar Blue 500GB
PSU
corsair cx500
Case
antec one s
Cooling
corsair a70
Keyboard
10 years old made in china keyboard
Mouse
thinkpad
Internet Speed
8mbps
Antivirus
malwarebytes
Browser
google chrome
Other Info
cost = £380.34
Try uninstalling the ATI/Radeon drivers then download the latest drivers appropriate for your card from here:

Download Drivers

Then install those drivers. That should fix the issue.
 

My Computer My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
Mellon Labs (custom build)
OS
Win 7 Pro x64/Win 10 Pro x64 dual boot
CPU
AMD FX 8350 Vishera @ 4200
Motherboard
ASUS M5A97 R2.0
Memory
16 GB Mushkin Blackline DDR3-2400 @ 1866 (9-10-10-10-31)
Graphics Card(s)
XFX Radeon R9 280 Double D Black Edition
Sound Card
Realtek HD Audio on MB. Sounds great.
Monitor(s) Displays
Acer 24", Acer 22"
Screen Resolution
3840 x 1080
Hard Drives
1 x Mushkin Chronos 120 GB SSD (Win 10)
1 x Samsung 850 EVO 250 GB SSD (Win 7)
1 x WD 1TB SATA Blue
1 x WD 1TB SATA Green
PSU
Corsair TX-750
Case
CoolerMaster HAF 912+
Cooling
Coolermaster Seidon 240M Liquid AIO. 6 case fans
Keyboard
Logitech G710+
Mouse
Logitech G500s
Internet Speed
Much better since I got fiber, but still way overpriced.
Antivirus
MSE, Malware Bytes for scanning
Browser
Firefox
Other Info
Corsair VOID USB headphones.

A Mellon Labs X-1 - LCD Smartie driven system status display.

Brought to you by the letter E
what is the best way to uninstall my drivers?
 

My Computer My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
custom build
OS
windows 7 ultimate 64bit
CPU
amd fx 4100
Motherboard
Asus M5A97 R2.0
Memory
corsair xm3 2x2gb
Graphics Card(s)
amd radeon hd 6870
Monitor(s) Displays
samsung s22c300
Screen Resolution
1920x1080
Hard Drives
Western Digital Caviar Blue 500GB
PSU
corsair cx500
Case
antec one s
Cooling
corsair a70
Keyboard
10 years old made in china keyboard
Mouse
thinkpad
Internet Speed
8mbps
Antivirus
malwarebytes
Browser
google chrome
Other Info
cost = £380.34
You can run the AMD setup utility again, and choose Uninstall > Custom, and then remove only the graphics driver and the CCC or Crimson control centre (depending on version). Be careful that you don't remove your USB drivers or you'll have no keyboard/mouse. That's why you choose Custom.

That's the easiest way. You can also use something like Driver Sweeper, but I have never found it necessary for AMD drivers, and I don't really trust the places that you can download it from. YMMV.
 

My Computer My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
Mellon Labs (custom build)
OS
Win 7 Pro x64/Win 10 Pro x64 dual boot
CPU
AMD FX 8350 Vishera @ 4200
Motherboard
ASUS M5A97 R2.0
Memory
16 GB Mushkin Blackline DDR3-2400 @ 1866 (9-10-10-10-31)
Graphics Card(s)
XFX Radeon R9 280 Double D Black Edition
Sound Card
Realtek HD Audio on MB. Sounds great.
Monitor(s) Displays
Acer 24", Acer 22"
Screen Resolution
3840 x 1080
Hard Drives
1 x Mushkin Chronos 120 GB SSD (Win 10)
1 x Samsung 850 EVO 250 GB SSD (Win 7)
1 x WD 1TB SATA Blue
1 x WD 1TB SATA Green
PSU
Corsair TX-750
Case
CoolerMaster HAF 912+
Cooling
Coolermaster Seidon 240M Liquid AIO. 6 case fans
Keyboard
Logitech G710+
Mouse
Logitech G500s
Internet Speed
Much better since I got fiber, but still way overpriced.
Antivirus
MSE, Malware Bytes for scanning
Browser
Firefox
Other Info
Corsair VOID USB headphones.

A Mellon Labs X-1 - LCD Smartie driven system status display.

Brought to you by the letter E
i did what you said and im still getting the same error.
ive attached a document with the screen shot
 

Attachments

My Computer My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
custom build
OS
windows 7 ultimate 64bit
CPU
amd fx 4100
Motherboard
Asus M5A97 R2.0
Memory
corsair xm3 2x2gb
Graphics Card(s)
amd radeon hd 6870
Monitor(s) Displays
samsung s22c300
Screen Resolution
1920x1080
Hard Drives
Western Digital Caviar Blue 500GB
PSU
corsair cx500
Case
antec one s
Cooling
corsair a70
Keyboard
10 years old made in china keyboard
Mouse
thinkpad
Internet Speed
8mbps
Antivirus
malwarebytes
Browser
google chrome
Other Info
cost = £380.34

My Computer My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
Mellon Labs (custom build)
OS
Win 7 Pro x64/Win 10 Pro x64 dual boot
CPU
AMD FX 8350 Vishera @ 4200
Motherboard
ASUS M5A97 R2.0
Memory
16 GB Mushkin Blackline DDR3-2400 @ 1866 (9-10-10-10-31)
Graphics Card(s)
XFX Radeon R9 280 Double D Black Edition
Sound Card
Realtek HD Audio on MB. Sounds great.
Monitor(s) Displays
Acer 24", Acer 22"
Screen Resolution
3840 x 1080
Hard Drives
1 x Mushkin Chronos 120 GB SSD (Win 10)
1 x Samsung 850 EVO 250 GB SSD (Win 7)
1 x WD 1TB SATA Blue
1 x WD 1TB SATA Green
PSU
Corsair TX-750
Case
CoolerMaster HAF 912+
Cooling
Coolermaster Seidon 240M Liquid AIO. 6 case fans
Keyboard
Logitech G710+
Mouse
Logitech G500s
Internet Speed
Much better since I got fiber, but still way overpriced.
Antivirus
MSE, Malware Bytes for scanning
Browser
Firefox
Other Info
Corsair VOID USB headphones.

A Mellon Labs X-1 - LCD Smartie driven system status display.

Brought to you by the letter E
20160228_153732.jpg
 

My Computer My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
custom build
OS
windows 7 ultimate 64bit
CPU
amd fx 4100
Motherboard
Asus M5A97 R2.0
Memory
corsair xm3 2x2gb
Graphics Card(s)
amd radeon hd 6870
Monitor(s) Displays
samsung s22c300
Screen Resolution
1920x1080
Hard Drives
Western Digital Caviar Blue 500GB
PSU
corsair cx500
Case
antec one s
Cooling
corsair a70
Keyboard
10 years old made in china keyboard
Mouse
thinkpad
Internet Speed
8mbps
Antivirus
malwarebytes
Browser
google chrome
Other Info
cost = £380.34
i did download the 64 bit version, ive tried both ccc and crimson
 

My Computer My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
custom build
OS
windows 7 ultimate 64bit
CPU
amd fx 4100
Motherboard
Asus M5A97 R2.0
Memory
corsair xm3 2x2gb
Graphics Card(s)
amd radeon hd 6870
Monitor(s) Displays
samsung s22c300
Screen Resolution
1920x1080
Hard Drives
Western Digital Caviar Blue 500GB
PSU
corsair cx500
Case
antec one s
Cooling
corsair a70
Keyboard
10 years old made in china keyboard
Mouse
thinkpad
Internet Speed
8mbps
Antivirus
malwarebytes
Browser
google chrome
Other Info
cost = £380.34
So the drivers say that they are installed properly, but you're getting a driver sign error. What happens when you reboot? Does the screen work properly?

When you go into device manager, do you see a yellow triangle beside your graphics card? If so, choose update drivers for the graphics card ans see what happens.
 

My Computer My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
Mellon Labs (custom build)
OS
Win 7 Pro x64/Win 10 Pro x64 dual boot
CPU
AMD FX 8350 Vishera @ 4200
Motherboard
ASUS M5A97 R2.0
Memory
16 GB Mushkin Blackline DDR3-2400 @ 1866 (9-10-10-10-31)
Graphics Card(s)
XFX Radeon R9 280 Double D Black Edition
Sound Card
Realtek HD Audio on MB. Sounds great.
Monitor(s) Displays
Acer 24", Acer 22"
Screen Resolution
3840 x 1080
Hard Drives
1 x Mushkin Chronos 120 GB SSD (Win 10)
1 x Samsung 850 EVO 250 GB SSD (Win 7)
1 x WD 1TB SATA Blue
1 x WD 1TB SATA Green
PSU
Corsair TX-750
Case
CoolerMaster HAF 912+
Cooling
Coolermaster Seidon 240M Liquid AIO. 6 case fans
Keyboard
Logitech G710+
Mouse
Logitech G500s
Internet Speed
Much better since I got fiber, but still way overpriced.
Antivirus
MSE, Malware Bytes for scanning
Browser
Firefox
Other Info
Corsair VOID USB headphones.

A Mellon Labs X-1 - LCD Smartie driven system status display.

Brought to you by the letter E
Question 1 and 2 answer : my computer seems to work fine when i reboot, whilst being in low resolution for some reason.
question 3 answer : yes i see a yellow triangle next to my grahics card , i will get back to you once i update the card
 

My Computer My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
custom build
OS
windows 7 ultimate 64bit
CPU
amd fx 4100
Motherboard
Asus M5A97 R2.0
Memory
corsair xm3 2x2gb
Graphics Card(s)
amd radeon hd 6870
Monitor(s) Displays
samsung s22c300
Screen Resolution
1920x1080
Hard Drives
Western Digital Caviar Blue 500GB
PSU
corsair cx500
Case
antec one s
Cooling
corsair a70
Keyboard
10 years old made in china keyboard
Mouse
thinkpad
Internet Speed
8mbps
Antivirus
malwarebytes
Browser
google chrome
Other Info
cost = £380.34
20160228_193341.jpg
 

My Computer My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
custom build
OS
windows 7 ultimate 64bit
CPU
amd fx 4100
Motherboard
Asus M5A97 R2.0
Memory
corsair xm3 2x2gb
Graphics Card(s)
amd radeon hd 6870
Monitor(s) Displays
samsung s22c300
Screen Resolution
1920x1080
Hard Drives
Western Digital Caviar Blue 500GB
PSU
corsair cx500
Case
antec one s
Cooling
corsair a70
Keyboard
10 years old made in china keyboard
Mouse
thinkpad
Internet Speed
8mbps
Antivirus
malwarebytes
Browser
google chrome
Other Info
cost = £380.34
this is what happend
 

My Computer My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
custom build
OS
windows 7 ultimate 64bit
CPU
amd fx 4100
Motherboard
Asus M5A97 R2.0
Memory
corsair xm3 2x2gb
Graphics Card(s)
amd radeon hd 6870
Monitor(s) Displays
samsung s22c300
Screen Resolution
1920x1080
Hard Drives
Western Digital Caviar Blue 500GB
PSU
corsair cx500
Case
antec one s
Cooling
corsair a70
Keyboard
10 years old made in china keyboard
Mouse
thinkpad
Internet Speed
8mbps
Antivirus
malwarebytes
Browser
google chrome
Other Info
cost = £380.34
That's really strange. The driver is there but it seems like it's not loading...

But it looks like you have more driver issues than just your graphics card. This may or may not be related, but you have two unknown devices, and two serial ports with yellow triangles on them. It might be a good idea to try to resolve those issues too, as they may be affecting the graphics card drivers.
 

My Computer My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
Mellon Labs (custom build)
OS
Win 7 Pro x64/Win 10 Pro x64 dual boot
CPU
AMD FX 8350 Vishera @ 4200
Motherboard
ASUS M5A97 R2.0
Memory
16 GB Mushkin Blackline DDR3-2400 @ 1866 (9-10-10-10-31)
Graphics Card(s)
XFX Radeon R9 280 Double D Black Edition
Sound Card
Realtek HD Audio on MB. Sounds great.
Monitor(s) Displays
Acer 24", Acer 22"
Screen Resolution
3840 x 1080
Hard Drives
1 x Mushkin Chronos 120 GB SSD (Win 10)
1 x Samsung 850 EVO 250 GB SSD (Win 7)
1 x WD 1TB SATA Blue
1 x WD 1TB SATA Green
PSU
Corsair TX-750
Case
CoolerMaster HAF 912+
Cooling
Coolermaster Seidon 240M Liquid AIO. 6 case fans
Keyboard
Logitech G710+
Mouse
Logitech G500s
Internet Speed
Much better since I got fiber, but still way overpriced.
Antivirus
MSE, Malware Bytes for scanning
Browser
Firefox
Other Info
Corsair VOID USB headphones.

A Mellon Labs X-1 - LCD Smartie driven system status display.

Brought to you by the letter E
alright ill try and fix that and get back to you.
 

My Computer My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
custom build
OS
windows 7 ultimate 64bit
CPU
amd fx 4100
Motherboard
Asus M5A97 R2.0
Memory
corsair xm3 2x2gb
Graphics Card(s)
amd radeon hd 6870
Monitor(s) Displays
samsung s22c300
Screen Resolution
1920x1080
Hard Drives
Western Digital Caviar Blue 500GB
PSU
corsair cx500
Case
antec one s
Cooling
corsair a70
Keyboard
10 years old made in china keyboard
Mouse
thinkpad
Internet Speed
8mbps
Antivirus
malwarebytes
Browser
google chrome
Other Info
cost = £380.34
i dont know how to fix those issues
 

My Computer My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
custom build
OS
windows 7 ultimate 64bit
CPU
amd fx 4100
Motherboard
Asus M5A97 R2.0
Memory
corsair xm3 2x2gb
Graphics Card(s)
amd radeon hd 6870
Monitor(s) Displays
samsung s22c300
Screen Resolution
1920x1080
Hard Drives
Western Digital Caviar Blue 500GB
PSU
corsair cx500
Case
antec one s
Cooling
corsair a70
Keyboard
10 years old made in china keyboard
Mouse
thinkpad
Internet Speed
8mbps
Antivirus
malwarebytes
Browser
google chrome
Other Info
cost = £380.34
Ok. On the serial ports, right click the serial port in Device Manager and choose "Update driver" and see if Windows can find a driver for them.

As for the other two items, have you added any new hardware lately? Those two "unknown" devices could be the serial ports and may disappear when you get the serial drivers updated. Try that first.
 

My Computer My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
Mellon Labs (custom build)
OS
Win 7 Pro x64/Win 10 Pro x64 dual boot
CPU
AMD FX 8350 Vishera @ 4200
Motherboard
ASUS M5A97 R2.0
Memory
16 GB Mushkin Blackline DDR3-2400 @ 1866 (9-10-10-10-31)
Graphics Card(s)
XFX Radeon R9 280 Double D Black Edition
Sound Card
Realtek HD Audio on MB. Sounds great.
Monitor(s) Displays
Acer 24", Acer 22"
Screen Resolution
3840 x 1080
Hard Drives
1 x Mushkin Chronos 120 GB SSD (Win 10)
1 x Samsung 850 EVO 250 GB SSD (Win 7)
1 x WD 1TB SATA Blue
1 x WD 1TB SATA Green
PSU
Corsair TX-750
Case
CoolerMaster HAF 912+
Cooling
Coolermaster Seidon 240M Liquid AIO. 6 case fans
Keyboard
Logitech G710+
Mouse
Logitech G500s
Internet Speed
Much better since I got fiber, but still way overpriced.
Antivirus
MSE, Malware Bytes for scanning
Browser
Firefox
Other Info
Corsair VOID USB headphones.

A Mellon Labs X-1 - LCD Smartie driven system status display.

Brought to you by the letter E
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