Under Windows 7 and later, the possible range of spoofed addresses for wireless adapters that can be set is limited. To be used by Windows, a spoofed MAC address should have 0 as a least significant bit (unicast) and 1 as a second least significant bit (locally administered) in the second nibble. Thus possible values for the second nibble are limited to 2, 6, A and E.
In other words
MAC address: 'XY-XX-XX-XX-XX-XX' 'X' can be anything hexadecimal. The hexadecimal 'Y', written in binary format, is Y: 'kmnp', where 'p' is the least significant bit;
So, actually MAC can be changed to any combination in which p=0 and n=1;
'Y' can be 2, 6, A or E.
Change Mac Address Win7
You can change the MAC address into your desired one manually or allow this tool to generate a random MAC address for you. Click this link to download the NoVirusThanks MAC address Changer, install and open it. Then select your network adapter and click 'Change. My favorite software to change MAC Address: I prefer Technitium MAC Address Changer to change.
So the possible MAC addresses in Windows 7 or later for wireless adapters:
So to be completely anonymous, you'll need to change your MAC address. There were some software which could change the MAC address in Windows XP temporarily but they didn't work in Windows 7. Use Win7 Mac Changer to change Windows 7 Mac address. Win7 MAC Address Changer is a very simple tool specifically made for changing MAC address in. How to directly change the MAC address without 3rd party tool Open Device Manager, expand the Network adapter section and double-click the network adapter that you want to manipulate to open its properties. Go to Advanced tab and select the Network Address in the Property box. Then set the Value box to whatever you want in a validated format.
Change Mac Address Win7 Regedit
- X6-XX-XX-XX-XX-XX
- XE-XX-XX-XX-XX-XX
It is limitation from Microsoft.
Change Mac Win7
Sometimes the problem can be fixed by downgrading driver for wireless adapter and installing its version for Windows XP. And then the MAC address can be changed to any MAC address without limitation. But downgrade may cause incorrect work of device.
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Getting Started Before we get into the technical details, if you are not comfortable of changing MAC Address via registry entries, please use the User Friendly SMAC MAC Address Changer. It will be less risk and it will make your life a lot easier. There could be couple ways to do change (spoof) MAC Addresses on Windows 2000, XP, 2003, and VISTA.Make sure you read through the steps first.If my explanation does not make sense to you, please useSMAC. The following information is provided 'AS IS.'If you have any inputs, please feel free to send me an email.
Before we start: KLC Consulting Security Teamhas developed a Windows MAC Address Spoofing tool, SMAC. SMAC is developed based on this research article, and it has manyfunctionalities. SMAC allows Windows 2000, XP, 2003 Server and VISTA users to change MACaddress regardless of whether manufacturers allow this option or not. URL of SMAC is http://www.klcconsulting.net/smac. Method 1: This is depending on the typeof Network Interface Card (NIC) you have.Ifyou have a card that doesn't support Clone MAC address, then you have to go tosecond method.
Method 2: This method requires someknowledge on the Windows Registry.If you are not familiar with Windows Registry, just use the simple-to-useSMAC MAC Address Changer to change the MAC addresses (the easiest and safest way,) or consult with a technicalperson before you attempt on the following steps.Also, make sure you have a good backup of your registry. 1.Goto command prompt and type 'ipconfig /all', and I. Record the Description for the NIC you want to change. II. Record the Physical Address for the NIC you want to change. Physical Address is the MAC Address 2.Goto command prompt and type 'net config rdr', and you should seesomething like
3.Remember the number between the long number (GUID) inside the { }.For example, in the above 'net config rdr' output, for MAC address'00C095ECB793,' you should remember {1C9324AD-ADB7-4920-B02D-AB281838637A}.You can copy and paste it to the Notepad, that's probably the easiestway. (See figure 2.) 4.Go to Start -> Run, type 'regedt32' to start registry editor.Do not use 'Regedit.' 5.Do a BACKUP of your registry in case you screw up the following steps.To do this
6.Go to 'HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlClass{4D36E972-E325-11CE-BFC1-08002BE10318}. Double click on it to expand the tree.Thesubkeys are 4-digit numbers, which represent particular networkadapters. You should see it starts with 0000, then 0001, 0002, 0003 and soon. (See figure 3.)
7. Go through each subkey that starts with 0000. Click on 0000, check DriverDesckeyword on the right to see if that's the NIC you want to change the MACaddress. The DriveDesc should match the Description yourecorded from step (a.-I.). If you are not 100% sure about the DriverDesc,then you can verify by checking if the NetCfgInstanceID keyword valuematches the GUID from step (c). 8. Once you selected the subkey (i.e. 0000), check if there is a keyword 'NetworkAddress'exist in the right side of the window. (See figure 3.) I. If 'NetworkAddress' keyworddoes not exist, then create this new keyword: i. Click on the drop down menu 'Edit -> Add Value'. ii. In the Add Value window, enter the following value then clickOK. (See figure 4.)
iii. String Editor window will pop up at this time (see figure5.) iv. Enter the new MAC address you want to modify. Then click OK. II. If 'NetworkAddress' keyword exists, make sure it shows thekeyword type is REG_SZ, and it should show as NetworkAddress:REG_SZ: . This keyword might not have a value at this time. i. Double click on the keyword NetworkAddressand the String Editor window will pop up. (See Figure 5.) ii. Enter the new MAC address you want to modify. Then click OK.
9.There are 2 ways to make the new MAC address active. Method I doesnot require a system reboot: I. Goto Start->Setting->Control Panel, and double click on'Network Neighborhood'. i. Select the Network Adaptor you just changed the MAC address. ii. Right click on the selected Network Adaptor and click'Disable.' iii. Right click on the selected Network Adaptor and click'Enable.' iv. If for any reason it cannot be disabled or re-enabled, you have to II. Reboot your Windows system. 10. Once completing step j (if rebooting the system, wait until the reboot is completed), go to command prompt, type 'ipconfig /all' to confirm the new MAC address.
Restore The TRUE Hardware burned-in MAC Address:
IfMAC Address changes does not work:
MACAddress Spoofer:
Reference: Additionalinformation:
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