Computer tips

Miyerkules, Abril 10, 2019

How can I clear the Run history?

The Run history is stored in the registry in location

as a series of values a-z. To delete an entry from the run menu perform the following:

Start the registry editor (regedit.exe)
Move to HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\RunMRU
Select the entry you wish to remove, e.g. h
Press the Del key (or select Edit - Delete) and click Yes to the confirmation
Double click the MRUList value and remove the letter you just deleted. Click OK to save the change
Close the registry editor

Pfsense boot loop fix

boot as single user mode after give the command in prompt /sbin/fsck -y -t ufs /

Huwebes, Pebrero 21, 2019

Resetting Your Forgotten Windows Password

Boot off the Windows disk and select the “Repair your computer” option from the lower left-hand corner

Follow through until you get to the option to open the Command Prompt, which you’ll want to select.

First you’ll want to type in the following command to backup the original sticky keys file:

copy c:\windows\system32\sethc.exe c:\

Then you’ll copy the command prompt executable (cmd.exe) over top of the sticky keys executable:

copy c:\windows\system32\cmd.exe c:\windows\system32\sethc.exe

Now you can reboot the PC.

Resetting the Password

Once you get to the login screen, hit the Shift key 5 times, and you’ll see an administrator mode command prompt.

Now to reset the password—just type the following command, replacing the username and password with the combination you want:

net user geek MyNewPassword

That’s all there is to it. Now you can login.

Of course, you’ll probably want to put the original sethc.exe file back, which you can do by rebooting into the installation CD, opening the command prompt, and copying the c:\sethc.exe file back to c:\windows\system32\sethc.exe.

Reset Password with Command Prompt in Safe Mode

Windows 7 and earlier versions have a built-in hidden Administrator account which has no password by default. After forgetting the password to your regular account, you can access the built-in Administrator account in Safe Mode, and then reset your forgotten password with Command Prompt.

While starting the computer, hold down the F8 key until the Advanced Boot Options screen appears. Using the arrow keys to select "Safe Mode with Command Prompt" and press Enter.
You will see the hidden Administrator account available on the login screen. Once logging in, the system will automatically launch the Command Prompt with admin rights.
Run the following command and you can reset forgotten Windows 7 password in no time.
```
net user username new_password
```

Note that this method doesn't work if the hidden Administrator account is disabled.

Reset Windows 7 Password Using the Utilman.exe Trick

This trick based on the substitution of the Utility Manager (Utilman.exe) program that can be used during logon screen with Command Prompt (cmd.exe), so you can access Command Prompt from the login screen and reset your Windows 7 password quickly. Follow these steps:

Boot your computer from Windows 7 installation disk. When the Install Windows screen appears, press SHIFT + F10 keys to open the Command Prompt.
Type in the following commands. Replace C: with the drive where your Windows 7 system was installed.
```
C:
cd windows\system32
ren Utilman.exe Utilman.exe.bak
copy cmd.exe Utilman.exe
```
That's all we need to do here. Close the Command Prompt and the Install Windows dialog to restart you computer.
Let the Windows 7 boots normally this time. At login screen click the Ease of Access icon, it will launch the Command Prompt window. You can then run the following command to reset your forgotten password.
```
net user username new_password
```
Close the Command Prompt and you can use the new password to log in. Don't forget to restore the original Utilman.exe file back.

Martes, Nobyembre 13, 2018

How to fix can't change windows update settings.

For Windows Vista/7

Click Start and type regedit in the Search Programs and Files field. Then right-click on regedit in the programs list and select Run as Administrator.

Within the Registry Editor, navigate to: HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU.

On the right side of the window, locate AUOptions and NoAutoUpdate. Delete both of these registry keys.

Reboot

You should now be able to edit Windows Update

Huwebes, Nobyembre 8, 2018

HIDE THE NETWORK PLACES IN EXPLORER

Run as SYSTEM USER(you can use any monitoring software)

reg add "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\NonEnum" /v {F02C1A0D-BE21-4350-88B0-7367FC96EF3C} /t REG_DWORD /d 1 /f

if you want to enable it just change the "1" to "0" after the /d

kung need i e-enable ulit just change the "1" to "0" after the /d.

Miyerkules, Nobyembre 7, 2018

How to fix BAD_SYSTEM_CONFIG_INFO. loading forever

select advance options
choose command
type d:
type dir
type cd d:\windows\system32\config
type md backup
type copy *.* backup
type cd regback
type copy *.* ..
type a
type exit
turn off PC

Lunes, Oktubre 1, 2018

how to setup pfsense firewall

1. Select target machine, place pfSense CD/DVD or USB stick and set the BIOS options to your booting method (CD/DVD or USB) according to your choice and choose the boot options by pressing a keyboard function keys, usually F10 or F12, pfSense will start booting….

2. As the pfSense starts booting, a prompt is displayed with some options and a countdown timer. At this prompt, press 1 to get install pfsense by default. If we don’t choose any option it will start to boot option 1 by default.

3 Next, press ‘I‘ to install fresh copy of pfsense, If we need to start a recovery use R, to Continue using Live CD choose C within 20 seconds count.

4. On the screen, it will ask you to ‘Configure Console‘, just press ‘Accept these settings‘ to move forward for installation process.

5. If you’re new to pfsense, choose ‘Quick/Easy Install‘ option to take make things easier or choose ‘Custom Install‘ to get advance options during installation process (recommended for advance users).

pfSense Configuration

After the reboot, and the removal of the CD/USB media, pfSense will reboot into the newly installed operating system. By default, pfSense will pick an interface to set-up as the WAN interface with DHCP and leave the LAN interface unconfigured.

While pfSense does have a web based graphical configuration system, it is only running on the LAN side of the firewall but at the moment, the LAN side will be unconfigured. The first thing to do would be to set an IP address on the LAN interface.

To do this follow these steps:

Take note of which interface name is the WAN interface (em0 above).
Enter ‘1’ and press the ‘Enter’ key.
Type ‘n’ and press the ‘Enter’ key when asked about VLANs.
Type in the interface name recorded in step one when prompted for the WAN interface or change to the proper interface now. Again this example, ‘em0’ is the WAN interface as it will be the interface facing the Internet. use usable ip next to ip of gateway
The next prompt will ask for the LAN interface, again type the proper interface name and hit the ‘Enter’ key. In this install, ‘em1’ is the LAN interface.
pfSense will continue to ask for more interfaces if they are available but if all interfaces have been assigned, simply hit the ‘Enter’ key again.
pfSense will now prompt to ensure that the interfaces are assigned properly.

If the interfaces are correct, type ‘y’ and hit the ‘Enter’ key.

The next step will be to assign the interfaces the proper IP configuration. After pfSense returns to the main screen, type ‘2’ and hit the ‘Enter’ key. (Be sure to keep track of the interface names assigned to the WAN and LAN interfaces).

*NOTE* For this install the WAN interface can use DHCP without any problems but there may be instances where a static address would be required. The process for configuring a static interface on the WAN would be the same as the LAN interface that is about to be configured.

Type ‘2’ again when prompted for which interface to set IP information. Again 2 is the LAN interface in this walk through.

When prompted, type the IPv4 address desired for this interface and hit the ‘Enter’ key. This address should not be in use anywhere else on the network and will likely become the default gateway for the hosts that will be plugged into this interface.

The next prompt will ask for the subnet mask in what is known as prefix mask format. For this example network a simple /24 or 255.255.255.0 will be used. Hit the ‘Enter’ key when done.

The next question will ask about an ‘Upstream IPv4 Gateway’. Since the LAN interface is currently be configured, simply hit the ‘Enter’ key.

The next prompt will ask to configure IPv6 on the LAN interface. This guide is simply using IPv4 but should the environment require IPv6, it can be configured now. Otherwise, simply hitting the ‘Enter’ key will continue.

The next question will ask about starting the DHCP server on the LAN interface. Most home users will need to enable this feature. Again this may need to be adjusted depending on the environment.

This guide assumes that the user will want the firewall to provide DHCP services and will allocate 51 addresses for other computers to obtain an IP address from the pfSense device.

The next question will ask to revert pfSense’s web tool to the HTTP protocol. It is strongly encouraged NOT to do this as the HTTPS protocol will provide some level of security to prevent disclosure of the admin password for the web configuration tool.

Once the user hits ‘Enter’, pfSense will save the interface changes and start the DHCP services on the LAN interface.

Notice that pfSense will provide the web address to access the web configuration tool via a computer plugged in on the LAN side of the firewall device. This concludes the basic configuration steps to make the firewall device ready for more configurations and rules.

The web interface is accessed through a web browser by navigating to the LAN interface’s IP address.

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