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Support #935

Updated by Daniel Curtis over 2 years ago

This is a guide on resetting a forgotten Windows 7 password using an Arch Linux install media.

h2. Prepare the Environment

* Make sure the package repo databases are updated:
<pre>
pacman -Sy
</pre>

* Install chntpw:
<pre>
pacman -S chntpw
</pre>

h2. Reset Windows Password

* Use fdisk to list out the drive partitions:
<pre>
fdisk -l
</pre>
#* _Example +Example output_
<pre>
Disk /dev/sda: 232.9 /dev/sdb: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: dos
Disk identifier: 0xc05a68a1

Device Boot Start End Sectors Size Id Type
/dev/sda1 * 2048 488394751 488392704 232.9G 7 HPFS/NTFS/exFAT
</pre>

* Mount the Windows partition:
<pre>
mount /dev/sda1 /mnt
</pre>

* Change into the Windows System32 directory:
<pre>
cd /mnt/Windows/System32/config/
</pre>

* Get a list of users in the SAM:
<pre>
chntpw -l sam
</pre>

* Run chntpw for the Bob user:
<pre>
chntpw -u Bob sam
</pre>

* Enter *1* to clear Bobs password:
<pre>
1
</pre>

* Enter *2* to unlock Bobs account:
<pre>
2
</pre>

* Quit chntpw and write the hive file:
<pre>
q
y
</pre>

* Unmount the Windows partition and reboot:
<pre>
umount /mnt
reboot
</pre>

h2. Resources

* https://www.techrepublic.com/blog/tr-dojo/reset-windows-passwords-with-the-help-of-linux/

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