Fix Windows Installer Access Denied Error

Fix Windows Installer Access Denied Error: If you are facing the error message “Access Denied” while trying to install a new program on Windows 10 or if you’re facing Msiexec.exe Access is Denied Error then you are at the right place as today we are going to fix this issue. The main cause of the error seems to corrupted or damaged Windows Installer files.

When you try to install or uninstall programs from Windows 10, you may get any one of the following warning messages:

The Windows Installer Service could not be accessed
Windows Installer Service couldn’t be started
Could not start the Windows Installer service on Local Computer. Error 5: Access is denied.

In order to fix the underlying cause of this problem, we need to re-register Windows Installer files or sometimes by simply restarting Windows Installer services seems to fix the issue. So without wasting any time let’s see how to actually Fix Windows Installer Access Denied Error with the help of the below-listed guide.

Fix Windows Installer Access Denied Error

Assegureu-vos de crear un punt de restauració, per si alguna cosa va malament.

Method 1: Restart Windows Installer Service

1.Premeu la tecla Windows + R i després escriviu services.msc i prem Entrar.

2.Trobar Windows Installer service després feu-hi clic amb el botó dret i seleccioneu Propietats.

3.Click Començar if the service is not already running.

4.If the service is already running then right-click and select Reinicia.

5.Again try to install the program which was giving access denied error.

Method 2: Re-register Windows Installer

1.Premeu la tecla Windows + X i després seleccioneu Indicador d'ordres (Admin).

2.Escriviu la següent comanda a cmd i premeu Enter:

msiexec /unreg

msiexec / regserver

3.Reinicieu el vostre PC per desar els canvis.

4.If the issue is not resolved then press Windows key + R then type the following and hit Enter:

%windir%system32

5. Localitza el Msiexec.exe file then note down the exact address of the file which would be something like this:

C:WINDOWSsystem32Msiexec.exe

6.Premeu la tecla Windows + R i després escriviu regedit i premeu Enter per obrir l'Editor del registre.

7.Navegueu a la següent clau de registre:

HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesMSIServer

8.Seleccioneu MSIServer després, al panell dret de la finestra, feu doble clic ImagePath.

9.Now type the location of the Msiexec.exe file which you noted above in the value data field followed by “/V” and the whole thing would look like:

C:WINDOWSsystem32Msiexec.exe /V

10.Boot your PC into safe mode using any of the methods listed here.

11.Premeu la tecla Windows + X i després seleccioneu Indicador d'ordres (Admin).

12.Type the following command and hit Enter:

msiexec / regserver

%windir%Syswow64Msiexec /regserver

13.Close everything and boot your PC normally. See if you’re able to Fix Windows Installer Access Denied Error, si no, continueu amb el mètode següent.

Method 3: Reset the Windows Installer Service

1.Open Notepad then copy & paste the following as it is:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesmsiserver]
"DisplayName"="@%SystemRoot%system32msimsg.dll,-27"
"ImagePath"=hex(2):25,00,73,00,79,00,73,00,74,00,65,00,6d,00,72,00,6f,00,6f,00,
74,00,25,00,5c,00,73,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,6d,
00,73,00,69,00,65,00,78,00,65,00,63,00,20,00,2f,00,56,00,00,00
"Description"="@%SystemRoot%system32msimsg.dll,-32"
"ObjectName"="LocalSystem"
"ErrorControl"=dword:00000001
"Start"=dword:00000003
"Type"=dword:00000010
"DependOnService"=hex(7):72,00,70,00,63,00,73,00,73,00,00,00,00,00
"ServiceSidType"=dword:00000001
"RequiredPrivileges"=hex(7):53,00,65,00,54,00,63,00,62,00,50,00,72,00,69,00,76,
00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,43,00,72,00,65,00,61,00,
74,00,65,00,50,00,61,00,67,00,65,00,66,00,69,00,6c,00,65,00,50,00,72,00,69,
00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,4c,00,6f,00,63,00,
6b,00,4d,00,65,00,6d,00,6f,00,72,00,79,00,50,00,72,00,69,00,76,00,69,00,6c,
00,65,00,67,00,65,00,00,00,53,00,65,00,49,00,6e,00,63,00,72,00,65,00,61,00,
73,00,65,00,42,00,61,00,73,00,65,00,50,00,72,00,69,00,6f,00,72,00,69,00,74,
00,79,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,
65,00,43,00,72,00,65,00,61,00,74,00,65,00,50,00,65,00,72,00,6d,00,61,00,6e,
00,65,00,6e,00,74,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,
00,00,53,00,65,00,41,00,75,00,64,00,69,00,74,00,50,00,72,00,69,00,76,00,69,
00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,53,00,65,00,63,00,75,00,72,00,
69,00,74,00,79,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,
00,53,00,65,00,43,00,68,00,61,00,6e,00,67,00,65,00,4e,00,6f,00,74,00,69,00,
66,00,79,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,
00,65,00,50,00,72,00,6f,00,66,00,69,00,6c,00,65,00,53,00,69,00,6e,00,67,00,
6c,00,65,00,50,00,72,00,6f,00,63,00,65,00,73,00,73,00,50,00,72,00,69,00,76,
00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,49,00,6d,00,70,00,65,00,
72,00,73,00,6f,00,6e,00,61,00,74,00,65,00,50,00,72,00,69,00,76,00,69,00,6c,
00,65,00,67,00,65,00,00,00,53,00,65,00,43,00,72,00,65,00,61,00,74,00,65,00,
47,00,6c,00,6f,00,62,00,61,00,6c,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,
00,67,00,65,00,00,00,53,00,65,00,41,00,73,00,73,00,69,00,67,00,6e,00,50,00,
72,00,69,00,6d,00,61,00,72,00,79,00,54,00,6f,00,6b,00,65,00,6e,00,50,00,72,
00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,52,00,65,00,
73,00,74,00,6f,00,72,00,65,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,
00,65,00,00,00,53,00,65,00,49,00,6e,00,63,00,72,00,65,00,61,00,73,00,65,00,
51,00,75,00,6f,00,74,00,61,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,
00,65,00,00,00,53,00,65,00,53,00,68,00,75,00,74,00,64,00,6f,00,77,00,6e,00,
50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,54,
00,61,00,6b,00,65,00,4f,00,77,00,6e,00,65,00,72,00,73,00,68,00,69,00,70,00,
50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,4c,
00,6f,00,61,00,64,00,44,00,72,00,69,00,76,00,65,00,72,00,50,00,72,00,69,00,
76,00,69,00,6c,00,65,00,67,00,65,00,00,00,00,00
"FailureActions"=hex:84,03,00,00,00,00,00,00,00,00,00,00,03,00,00,00,14,00,00,
00,01,00,00,00,c0,d4,01,00,01,00,00,00,e0,93,04,00,00,00,00,00,00,00,00,00

[HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesmsiserverEnum]
"0"="RootLEGACY_MSISERVER000"
"Count"=dword:00000001
"NextInstance"=dword:00000001

2.Now from Notepad menu click Dossier feu clic a Guardar com.

3.Des del Guardar com tipus de selecció desplegable Tots els fitxers.

4.Anomeneu el fitxer com a MSIrepair.reg (reg extension is very important).

5.Navigate to desktop or where you want to save the file and then click Desa.

6.Now right-click on the MSI repair.reg file and select Executa com administrador.

7.Reinicieu el vostre PC per desar els canvis i veure si podeu Fix Windows Installer Access Denied Error.

Method 4: Reinstall Windows Installer

Nota: Only Applied to earlier version of Windows

1.Premeu la tecla Windows + X i després seleccioneu Indicador d'ordres (Admin).

2.Escriviu l'ordre següent a cmd i premeu Enter després de cadascuna:

cd %windir%system32
attrib -r -s -h dllcache
ren msi.dll msi.old
ren msiexec.exe msiexec.old
ren msihnd.dll msihnd.old
exit

3.Reboot your PC and then download the Windows Installer 4.5 Redistributable from Microsoft website here.

4.Install the Redistributable package and then reboot your PC.

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