Microsoft Security Essentials

[deamze]

Hi There,

I'm trying to install Microsoft Security Essentials on my computer. I have downloaded the Windows 7, 64 bit edition which suits my computer. I get past the geniune windows bit and then I get hit by: "Can't complete the Microsoft Security Essentials Installation Wizard - Eoor code: 0x80070643"

I am running build 7600 of Windows 7 If that helps,

Thanks Hamish

 

[gforce23]

This thread might help.

 

[Spot UK]

Has anyone found a fix for this yet?

None of the fixes on the posted link above work for me.

Can't complete the Microsoft Security Essentials Installation wizard
Error code: 0x8007064A

Win7 64bit build 7600

 

[Jacee]

Have you seen this?
Installation Error 0x80070643

Also, see this
http://support.microsoft.com/kb/949104

 

[gamepro127]

Hi There,

I'm trying to install Microsoft Security Essentials on my computer. I have downloaded the Windows 7, 64 bit edition which suits my computer. I get past the geniune windows bit and then I get hit by: "Can't complete the Microsoft Security Essentials Installation Wizard - Eoor code: 0x80070643"

I am running build 7600 of Windows 7 If that helps,

Thanks Hamish

Go to start, type in "Windows update" and hit enter. On the middle-left side of windows update window, hit "Check for Updates"
Now, install ALL important and OPTIONAL updates. Reboot and try again.

 

[Spot UK]

Hmm, well Im not sure if I want to install 34 optional language packs just to install MSE.

Have a new install of Win 7, haven't put in any anti virus yet, tried all the above fixes except the 34 optional language packs, still get the same error

Can't complete the Microsoft Security Essentials Installation wizard
Error code: 0x8007064A


I guess I will just have to install AVG or something else.

 

[swarfega]

Have you previously installed other antimalware software from third party? If yes you should run the clean up tool from your vendor.

also

Step 2: Make sure the Windows Installer service is running

1. In Windows Vista or Windows 7, click Start , click in the Start Search box, type services.msc , and then press ENTER .
2. Right-click Windows Installer , and then click Start . If Start is unavailable and the Stop and Restart options are available, the service is already started.
3. In the Services window, on the File menu, click Exit .
4. In Windows Vista or Windows 7, click Start , click in the Start Search box, and then type command prompt . Right-click Command Prompt , and then click Run as administrator .
5. Type MSIEXEC /REGSERVER and then press ENTER . Note that there will be no indication that this command has succeeded or failed.
6. Try to install Microsoft Security Essentials again.

Step 3: Start Windows in Selective Startup mode

1. In Windows Vista or Windows 7, click Start , click in the Start Search box, type msconfig , and then press ENTER .
2. In the General tab, click Selective Startup , and then clear the Load Startup Items check box.
3. On the Services tab, select the Hide All Microsoft Services check box, and then clear all the check boxes for the services that remain in the list.
4. Click OK , and then click Restart to restart the computer.
5. Try to install Microsoft Security Essentials again.

 

[Spot UK]

Thanks swarfega

But I have already tried the clean up tool and step 2 and 3 with no luck.

Like I said this is a clean install of 7 and I have had no anti virus running on it yet.

The only thing I know that is running on this install is windows defender, I wonder if that has anything to do with it.

I have been looking for a fix for this for a few days now and it would seem that its nothing to do with Win 7 because its happening on XP and Vista machines too.

 

[swarfega]

When MSE is installed it normally disables Defender. Maybe the installer is having issues with performing that action. Try disable Defender before running the installer.

 

[kb7uar]

Hi There,

I'm trying to install Microsoft Security Essentials on my computer. I have downloaded the Windows 7, 64 bit edition which suits my computer. I get past the geniune windows bit and then I get hit by: "Can't complete the Microsoft Security Essentials Installation Wizard - Eoor code: 0x80070643"

I am running build 7600 of Windows 7 If that helps,

Thanks Hamish

Go to start, type in "Windows update" and hit enter. On the middle-left side of windows update window, hit "Check for Updates"
Now, install ALL important and OPTIONAL updates. Reboot and try again.

try installin the 32 bit program that is what I had to do and it works fine.

 

[Spot UK]

Was worth a try but if I try to install the 32 bit I get this

Still no anti virus on my system

 

[Tews]

Install the 64bit version...

 

[Spot UK]

Tews, did you not read this thread , the whole point is that I can’t install the MSE 64 bit version. Its not just me there are quite a lot of users having this problem and it happens in XP, Vista and Win7.

This is the error message, yes we have tried lots of the work arounds too.

 

[xaydn]

is mse good with seven? i've used it since i got 7 and have had no problems with viruses. so i think its one of the best.

 

[Tews]

Your own experience with MSE has answered your question...

 

[Spot UK]

In the end I gave up, re-installed Win7, the first thing I did after install was to download MSE and install that, it then went in, after the MSE installation I then put the drivers and my programs in, its all ok now, something I had installed, driver maybe, was stopping MSE going in.