Many of you might be aware of the fact that it is possible to use Windows 7 for 120 days without activation. This is actually possible using the slmgr -rearm command which will extend the period from 30 days to 120 days. Method 1: Command Prompt Method to Reset and Extend Windows 7, Windows 8/8.1 Trial Period upto One Year Open command prompt with administrative privilege. Type slmgr -rearm in the command box and press ‘Enter’. You will be asked to restart your system.

After installing Windows 7, and before activation, the operating system will run in an Initial Grace Period license status for 30 days. When this grace period expires, users can rearm Windows 7 for an additional 30 days, and do this up to 3 times, effectively allowing the OS to run legally for 120 days without a genuine product key.

When a user uses up all three rearms available rearms, the only option left is to enter a genuine product key to activate Windows 7, or leave the operating system in a crippled, non-genuine state. Users will then be subjected to certain annoyances such as black desktop background, repetitive notification messages stating that this copy of Windows is illegal or counterfeited, and a reminder to register the software at login.

Through a Windows Product Activation (WPA) vulnerability that Microsoft introduced in Windows 7, it is possible to reset the remaining rearm count back to 4. There is no limit to the number of times that the rearm count can be reset, meaning that a user could theoretically run an unlicensed copy of Windows 7 forever, without the need for proper activation, and without applying any activation hacks.

This WPA vulnerability is related to a WPA registry key which contains the ‘Last Rearm Time’. When the WPA registry key is deleted, the whole licensing status of Windows 7 is re-initiated to the Initial Grace Period as if Windows 7 has just been installed. The deletion of the WPA registry key is achieved via the following command:

reg load HKLMMY_SYSTEM “%~dp0WindowsSystem32configsystem”
reg delete HKLMMY_SYSTEMWPA /f
reg unload HKLMMY_SYSTEM

Sugar legacy stables tack. Given the importance of this WPA registry key, Microsoft has locked it (and its sub-keys) from been modified or deleted in a normal user session. The only way to run this command is within the WinRE (Windows Recovery Environment) or WinPE (Windows Preinstallation Environment).

In our managed environment, this method of rearming Windows is ultra handy in our SOE creation, in that we do not have to keep starting from scratch when we run out of rearms. This ‘hard’ rearm reset gives us one less thing to worry about if we need to tweak anything in our images.

To perform this ‘hard’ reset; create a batch script file with the following commands:

1. reg load HKLMMY_SYSTEM '%~dp0WindowsSystem32configsystem'
reg delete HKLMMY_SYSTEMWPA /f
reg unload HKLMMY_SYSTEMSave the file as delwpa.bat on drive C: at the root folder level. For example, C:delwpa.bat. Note that some users may require to run the text editor such as Notepad as administrator to save to C: root directory.
2. Restart the computer.
3. Press F8 right after the BIOS screen to get to the “Advanced Boot Options”.
4. Select Repair Your Computer.
5. Select your keyboard input method, and click Next.
6. Enter user name and password login credentials, and click OK.
7. In the “System Recovery Options”, open Command Prompt.
8. Type C: to go to the main drive, and the execute the delwpa.bat file by typing its name:delwpa.batNote: On some computers such as virtual machine or computer with recovery partition, the main drive may have another drive letter, e.g. D:
9. The console should display messages saying that the commands were executed successfully. Close the console window and reboot the machine.
10. After system start-up, log into Windows. Your system will display message such as “This product is not genuine”. Just ignore it.
11. To check the activation status, open an elevated command prompt window as administrator, and run the following command:slmgr /dlvThe dialog box with the following details should appear:

Tip: As an alternative, it’s possible boot from a Windows 7 Repair Disc or a Windows 7 installation disc to go to WinPE environment. This method will bypass the need to enter login credentials. Pressing F8 will bring user to WinRE console.

You can use your Windows 7 forever with rearm feature. Windows 7 has a Rearm feature which allows you to use it for next 30 days in evaluation mode but this can be done 3 times at max. So, you can only run it for 120 days maximum without activating using legitimate key or crack it. But there some tools that can automate Windows 7 Rearm indefinitely without crack and use it forever. The Rearm Count Reset Tools makes this procedure somehow easy as it includes minimal manual steps and everything is automated.
With this you can can use Windows 7 forever without cracking. By default, each Rearm count is reduced by one when you perform a Rearming operation but what does these tools do is to reset rearm count to 4 always. They RearmWindows 7 automatically on 29th or 30th Day of every month.
There are three tools namely InfiniteRearm4, Windows7Rearm Forever and Windows 7 Rearm Task developed by some clever users hackers at MDL Forum.
All these tools come with an instruction file for how to do reset Windows 7 Rearm count.
InfiniteRearm4 v1.9: Reset Windows 7 Rearm Count
Windows 7 Rearm Forever 2.0: Rearm Count Reset tools
Windows 7 RearmTask4 v2.1: Rearm Count Reset tools
It has following common steps:
1. Press F8 after POST to display the Advanced Boot Options
2. Select Repair your Computer
3. Select the keyboard input method
4. Enter the Windows Login details
5. Note on which drive the OS is installed below Choose Recovery Option
6. Click on Command Prompt
7. Type driveletter:reset (example C:reset or D:reset) and press Enter

Windows 7 Rearm Reset

8. Click on Restart button

Windows 7 Rearm Forever 2.0 Download

9. After logon, ignore the watermark & wait for a while till a Message Box is displayed.

Rearm Windows 10 Activation