Windows 7 Pro suddenly de-activated

In that case, it's counterfeit :(
COA_SLP Keys are the ones that come on COA stickers, where the OS is pre-installed by major manufacturers.
There are a number of scams operating, where 'shops' are selling Branded OEM disks with 'COA stickers' which may or may not be either OEM or Retail/MSDN Keys.

Who was the supplier for the OS?

....also, disks accompanying a COA_SLP Key would not be hologrammed, normally, but branded by the manufacturer.
I suggest that you look closely at teh disk!
 

My Computer

Computer type
Laptop
Computer Manufacturer/Model Number
Asus K52F or Lenovo B51-80
OS
Win 7 x64 Home Premium (and x86 VirtualBox VM)/Win10
CPU
i3 370M/i7 6500U
Motherboard
Asus/Lenovo
Memory
8GB - finally :)/8GB
Graphics Card(s)
it's an i3, dude!/dual Intel&nVidia
Sound Card
onboard
Monitor(s) Displays
15.6" built-in
Screen Resolution
1366x768/1920x1080
Hard Drives
750GB Seagate internal
Sundry external drives attached to other computers on the local network
1TB SSD on the Lenovo
PSU
n/a
Internet Speed
as much as I can get - usually on a dongle/phone, so <1MB/s
Antivirus
MSE/Defender
Browser
IE11/12/Edge/Chrome/FF(if I must)
It's not a manufacturer OEM like DELL etc but a general OEM as used by smaller system builders. It was purchased from Amazon and fulfilled by them. I was the system builder and all the hardware was new. I'm sorry if I haven't mentioned that as this came as a bit of a shock to the system (pardon the pun) and I may not have been thinking straight.
 

My Computer

Computer Manufacturer/Model Number
Shuttle SH67H3
OS
Windows 7 64bit OEM
CPU
Intel I7 2600k
Motherboard
Shuttle Sandybridge
Memory
16gb
Graphics Card(s)
MSI ATI6950 2gb
Sound Card
none
Monitor(s) Displays
Samsung 24"
Hard Drives
1tb Western Digital Caviar black SATA 3
PSU
500w Shuttle
Case
Shuttle
Cooling
Shuttle
If it was AMazon, then complain to them - it's probably worth your while also to try telephone activation in case we're missing something....


telephone activation (operator calls)
Click on the Start button
in the Search box, type
SLUI 4
and hit the Enter key
follow the instructions, but when asked which service you require by the telephone ansafone, do NOT reply - this should force an operator to respond, who can deal with you


....ask them specifically for the reason for the block, if they can't clear it
 

My Computer

Computer type
Laptop
Computer Manufacturer/Model Number
Asus K52F or Lenovo B51-80
OS
Win 7 x64 Home Premium (and x86 VirtualBox VM)/Win10
CPU
i3 370M/i7 6500U
Motherboard
Asus/Lenovo
Memory
8GB - finally :)/8GB
Graphics Card(s)
it's an i3, dude!/dual Intel&nVidia
Sound Card
onboard
Monitor(s) Displays
15.6" built-in
Screen Resolution
1366x768/1920x1080
Hard Drives
750GB Seagate internal
Sundry external drives attached to other computers on the local network
1TB SSD on the Lenovo
PSU
n/a
Internet Speed
as much as I can get - usually on a dongle/phone, so <1MB/s
Antivirus
MSE/Defender
Browser
IE11/12/Edge/Chrome/FF(if I must)
I'll give it a try but can I ask a quick question as well? If I can't get them to activate this is it possible to buy a retail copy and use it's key without having to reinstall? I know I could use their service from get genuine but chances are a retail copy would have less problems and of course be transferable to a new machine. I'm not sure what they charge direct but I know I can get one for £169.99 or less.
 

My Computer

Computer Manufacturer/Model Number
Shuttle SH67H3
OS
Windows 7 64bit OEM
CPU
Intel I7 2600k
Motherboard
Shuttle Sandybridge
Memory
16gb
Graphics Card(s)
MSI ATI6950 2gb
Sound Card
none
Monitor(s) Displays
Samsung 24"
Hard Drives
1tb Western Digital Caviar black SATA 3
PSU
500w Shuttle
Case
Shuttle
Cooling
Shuttle

My Computer

Computer type
Laptop
Computer Manufacturer/Model Number
Asus K52F or Lenovo B51-80
OS
Win 7 x64 Home Premium (and x86 VirtualBox VM)/Win10
CPU
i3 370M/i7 6500U
Motherboard
Asus/Lenovo
Memory
8GB - finally :)/8GB
Graphics Card(s)
it's an i3, dude!/dual Intel&nVidia
Sound Card
onboard
Monitor(s) Displays
15.6" built-in
Screen Resolution
1366x768/1920x1080
Hard Drives
750GB Seagate internal
Sundry external drives attached to other computers on the local network
1TB SSD on the Lenovo
PSU
n/a
Internet Speed
as much as I can get - usually on a dongle/phone, so <1MB/s
Antivirus
MSE/Defender
Browser
IE11/12/Edge/Chrome/FF(if I must)
I still can't get it to activate. Is there some way to buy a key over the web directly to activate my Windows 7?
 

My Computer

Computer Manufacturer/Model Number
Shuttle SH67H3
OS
Windows 7 64bit OEM
CPU
Intel I7 2600k
Motherboard
Shuttle Sandybridge
Memory
16gb
Graphics Card(s)
MSI ATI6950 2gb
Sound Card
none
Monitor(s) Displays
Samsung 24"
Hard Drives
1tb Western Digital Caviar black SATA 3
PSU
500w Shuttle
Case
Shuttle
Cooling
Shuttle
Have you changed the Key already?

Please post a new MGADiag report if so.
 

My Computer

Computer type
Laptop
Computer Manufacturer/Model Number
Asus K52F or Lenovo B51-80
OS
Win 7 x64 Home Premium (and x86 VirtualBox VM)/Win10
CPU
i3 370M/i7 6500U
Motherboard
Asus/Lenovo
Memory
8GB - finally :)/8GB
Graphics Card(s)
it's an i3, dude!/dual Intel&nVidia
Sound Card
onboard
Monitor(s) Displays
15.6" built-in
Screen Resolution
1366x768/1920x1080
Hard Drives
750GB Seagate internal
Sundry external drives attached to other computers on the local network
1TB SSD on the Lenovo
PSU
n/a
Internet Speed
as much as I can get - usually on a dongle/phone, so <1MB/s
Antivirus
MSE/Defender
Browser
IE11/12/Edge/Chrome/FF(if I must)
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