After seeing a Windows message saying that my trial version was set to expire, I tried activating my Enterprise edition of Windows 8.1 (64 bit) with Toolkit, but it couldn't find a key. I then used KMSpico and it appears to work...but I am not sure. As you can see beloww, slmgr commands 1 and 3 look like it's all OK, but the 2nd one says it's set to expire here in mid January and that's the message that keeps popping up every time I restart my PC. On a side note, will ESET nod32 antivirus interfere with KMSpico at all and if so how can I make them play nicely with each other? Thanks in advance. Sam When I type in slmgr /dli I get Name: Windows(R), Enterprise edition Description: Windows(R) Operating System, VOLUME_MAK channel Partial Product Key: DM92V License Status: Licensed When I type in slmgr /dlv Software licensing service version: 6.3.9600.16402 Name: Windows(R), Enterprise edition Description: Windows(R) Operating System, VOLUME_MAK channel Activation ID: ffdd27bd-30ad-4b58-ba24-c7e3b8026443 Application ID: 55c92734-d682-4d71-983e-d6ec3f16059f Extended PID: 06401-01381-001-005253-03-1033-9600.0000-0062014 Product Key Channel: Volume:MAK Installation ID: 434684098930928677302909423639993149052341000303525356568952724 Partial Product Key: DM92V License Status: Licensed Evaluation End Date: 1/16/2014 8:59:59 AM Remaining Windows rearm count: 999 Remaining SKU rearm count: 1001 Trusted time: 1/7/2014 859 AM When I type slmgr /xpr Windows(R), Enterprise edition: The machine is permanently activated.