How to Fix Printer Error 0x00000709 on Windows

1] Uninstall KB5006670 Cumulative update (din control panel, updates, sau linie de comanda admin wusa /uninstall /kb:5006670 )

2] Run Printer Troubleshooter msdt.exe /id PrinterDiagnostic

3] Disable the Windows 10 managing Printers automatically

4] Configure PointAndPrint registry (cmd as admin, reg add „HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows NT\Printers\PointAndPrint” /v RestrictDriverInstallationToAdministrators /t REG_DWORD /d 1 /f )

5] Use the Registry Editor (

Click on the Start button and type “Regedit” from your keyboard.
Select the Registry Editor application from the best match.
If UAC prompts on the screen, click on the Yes button to give your permission.
In the Registry Editor window, navigate to the path – 

HKEY_CURRENT_USER\Software\Microsoft\WindowsNT\CurrentVersion\Windows

Move to the right pane and double-click on the Device option.
In the popup menu, give the name of the printer inside the Value Data field.
Clicking on the OK button, a new error may appear saying – “Cannot edit Device: Error writing the value’s new contents”.
In this case, you need to set the permission of the key.
So, go to the left pane and do a right-click on the Windows folder as shown in the below snapshot.
From the context menu, select the Permissions option.
Go to the Group or user names section, and select Restricted.
Again, go to the Permissions for Restricted section and mark the checkbox next to the Full Control and Read option.
Finally, click on the Apply and then OK button.
There is a UserSelectDefault option in the right pane.
Right-click on this option and rename it as the printer name.
Now, reboot your computer and that’s it.

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src: https://www.howtoedge.com/fix-printer-error-0x00000709-on-windows-10/

calcul valoare condensator motor trifazic legat la monofazic

To connect our 380v tri motor in 220v mono (phase + neutral), we will use the triangle coupling.
We will connect for example: the phase in „u”, the neutral in „v”, and it will be necessary to add a capacitor between „v” and „w”
Very important !The capacitor must have a voltage greater than 230V and must be AC ??~, NEVER use a polarized capacitor otherwise it will explode!The usual value of the capacitor is expressed in micofarad „µf”
To find its value it is enough to multiply the power in CV by 50.
Example: a 250w motor (0.25kw)

to begin, you have to convert Watts into horses. for this we divide the watts by 736 (1 CV = 736 W)
In our example 250/736 = 0.34 HP, our engine is 0.34 HP.
To find the value of the capacitor: 0.34 x 50 = 17, so to operate the motor of 0.25kw requires a capacitor of 17 μf.
If the value of the capacitor is less than 17 μf, the motor will work much worse, or not at all.If the value is greater than 17 μf it is not annoying at all.

downgrade windows 7

Choose Run and write regedit.

Go to: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion

Change the keys EditionID and ProductName.

EditionID can be found in your Windows 7 installation CD under sources\ei.cfg.

ProductName will be shown when you try to install and are denied:

Windows 7 Ultimate cannot be upgraded to Windows 7 Home Premium

Here the Windows 7 Home Premium is the ProductName.

Make sure that it matches exactly.

This procedure worked like a charm for me!

make windows bootable after motherboard swap

In the BIOS, i went change the SATA to IDE mode (NOT RAID, NOT AHCI)

1.Boot Win7 DVD

2.Choose the Language Selection.

3.Choose Repair.

4.On the recovery tools choose the Command Line Console

5.Type:regedit <ENTER>

7.Highlight HKEY_LOCAL_MACHINE

8.File > Load Hive

9.Select < windows partition with problem > \Windows\System32\config\system (Backup this first, it’s advised)

10.Regedit will ask for a Key name: Name it something like „temp”

11.Located HKEY_LOCAL_MACHINE/temp/Select/Current

12.Searched for every key containing the value “SCSI Miniport” where the „Start” value was a „3” and changed the „Start” value to a „0”. (F3 to search next result).

13.Highlight „temp”

14.File > Unload Hive

15.Restart

16.Enter in Win7 🙂

vezi si https://social.technet.microsoft.com/Forums/es-ES/19c703a4-f52a-4b90-8a8c-fd80cbaf9c7a/windows-7-no-boot-stop-0x0000007b-and-classpnpsys-problem?forum=w7itprogeneral

install nxfilter on osmc

sudo apt-get install oracle-java8-jdk

sau

sudo apt-get install openjdk-8-jre-headless

wget http://pub.nxfilter.org/nxfilter-4.3.8.2.deb

sudo dpkg -i nxfilter-4.3.8.2.deb

sudo systemctl enable nxfilter.service

sudo systemctl start nxfilter.service

Enable IP authentification. The clients will be authenticated by NxFilter using the IP address. For that configure your network to assign a static IP for each client.

vezi si

Parental control with DNS filtering on Raspberry Pi

sudo nano /nxfilter/bin/startup.sh

instaleaza pivpn pe osmc

intra cu ssh pe osmc (user pass osmc implicite daca nu le-ai schimbat)
sudo nano /etc/os-release
inlocuieste OSMC cu Raspbian la variabila NAME
iesi si salvezi

instalezi iptables-persistent: sudo apt install iptables-persistent
apoi instalezi normal pivpn: sudo curl -L https://install.pivpn.io | bash

la dialogul DHCP reservation alegi yes
la dialogul installation mode alegi openvpn (wireguard da eroare)
la dialogul unnatended upgrades recomand no

la final creezi cel putin un client: pivpn add

daca vrei sa folosesti acelasi fisier la mai multi clienti
sudo nano /etc/openvpn/server.conf
si stergi # de la duplicate-cn

spor

Legile lui Murphy in calculatoare

Murphy in calculatoare

Un program face ceea ce îi ceri, nu ceea ce ai vrea tu sa-ti facã.
Valoarea unui program este direct proportionalã cu greutatea listingului.
Complexitatea unui program va creste pâna va depasi capacitatea de întelegere a operatorului care trebuie sã lucreze cu el.
Descoperirea unei erori într-un program de calcul se face abia dupã ce programul a fost folosit câteva luni de zile.
Orice program de calcul ajuns în faza de rulare este depasit.
Orice program de calcul costa mai mult si necesita mai mult timp decât s-a considerat initial .
Daca un program este util, va trebui schimbat. Daca nu mai este util va trebui sa fie justificat.
Orice program se va extinde pentru a ocupa întreaga memorie disponibila a calculatorului.
Daca pentru introducerea corecta a datelor în calculator s-au prevazut o serie de teste, se va gasi un idiot ingenios care va descoperi o metoda de a introduce si date gresite.
Daca ai gasit doua erori într-un program, caut-o si pe a treia.
Calculatoarele pot gres, dar oamenii gresesc si mai mult.
Dupa ce eroarea gasita a fost corectata, se va constata ca de fapt nu a fost nici o eroare.
Orice sistem care depinde de fiabilitatea umana este nefiabil.
Erorile nedetectabile se prezinta într-o infinitate de forme, pe când cele detectabile sunt prin definitie în numãr finit.