Hello, System-Locked Pre-installation (SLP) is the mechanism used by big royalty OEM computer manufacturers to factory activate pre-installed Windows operating system on branded desktop PC, laptop, notebook, netbook and nettop computer so that activation process of Windows is done transparently and automatically once end-user first starts the computer. The offline OEM-style pre-activation that bypass Windows Product Activatin (WPA) is implemented to reduce the chance of annoying mass PC buyers from having to deal with activation after buying the computer. Yes it is very important to activate windows 7 to make geniune. S--Software L--Licensed or licensing (semantics) I--Internal or Information (semantics) C--Code System-Locked Pre-installation (SLP) is the mechanism used by big royalty OEM computer manufacturers to factory activate pre-installed Windows operating system on branded desktop PC, laptop, notebook, netbook and nettop computer so that activation process of Windows is done transparently and automatically once end-user first starts the computer. The offline OEM-style pre-activation that bypass Windows Product Activatin (WPA) is implemented to reduce the chance of annoying mass PC buyers from having to deal with activation after buying the computer. There are now three different version of SLP, namely SLP 1.0 for Windows XP and Windows Server 2008, SLP 2.0 for Windows Vista and Windows Server 2008, and SLP 2.1, which supports Windows 7, Windows Server 2008 R2, and has backward-compatibility support for Windows Vista and Windows Server 2008 too.

Apr 22, 2012  SLIC (SYSTEM LICENSED INTERNAL CODE) 2.1 is the Software Licensing Table added to the BIOS on OEM PCs that come pre-installed with Windows 7. It is used in concert with a Matching OEM Certificate and Key to Activate Win 7. So by adding it to a BIOS and installing the Matching Certificate and Key, Win 7 will see your PC as a licensed OEM PC.

I have a 24 hour old T510 with Win7 Prof 64bit. All I have done since it arrived yesterday (after a month wait) is the Lenovo and Windows updates. Lost my activation, but I wasn't sure how. After contacting Lenovo tech support this morning I was referred to Microsoft where I spent about 90 'quality minutes' with Microsoft activation tech support on a remote help session and at the end I was given a new product key, which now works. There was no way the tech could get the original product key to activate no matter what he tried.

So, now I know it was the BIOS update included in the Lenovo update package. Note to Lenovo: you have a problem, and your initial advice to use the restore partition was evidently incorrect. Nathan, We have recreated these symptoms and found that this does not occur on all models. Whether it is a difference in boards or 32 vs 64 BIOS versions we are still investigating. I'm seeing several members with these symptoms who seem to have the 64 bit version of Windows 7. Has anyone with the 32 bit experienced this condition? In the meantime, the best work around is to roll back to a previous BIOS, so I'm marking your answer as the solution for now, pending a new release of BIOS.

Mark, I have a T410 with the issues - Win7 64 bit after upgrading BIOS to 1.12-1.04. Rolled back BIOS to to 1.09-1.04 (6IET49WW) and it is still the same problem with the failed activation. Tried factory restore from the partition twice with Win 7 64bit and still failure. I have also tried BIOS 1.09-1.02 as well couple with factore restore of operating System and still the same failure. Just as well I have the 128G SSHD which makes the rebuilds a lot faster.

I have had the case with Lenovo esculated but I am providing them with more info off the forum than they have. Regards, David. Well here I go again. After the issues I had with the T400s, I stupidly bought a W510.

And now this happens. I'm having the same problem the T410 people are having.

I updated my bios and now Windows 7 is not activated. I've tried flashing back to 1.09/1.07 and 1.08/1.04. Neither do anything.

I even installed Windows 7 x86 (32 bit) on the machine, and nothing will bring back the SLIC table. I'm not going to call Microsoft and activate my system. This system came with Windows 7. If I call and activate, and then need to do restore for some reason, I would have to call again.

Pilsner urquell undress me game. I shouldn't have to deal with this. Lenovo, fix this. I do have a copy of the backup it too, called FLASHABL.BAK.