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Windows 7: Cannot Install Microsoft Security Essential, error 0x80070645


25 Oct 2012   #11
Microsoft MVP

Windows 7 Ultimate 32bit SP1
 
 

Quote   Quote: Originally Posted by Layback Bear View Post
My dear lady Jacee what happen to your Avatar?
??? what does it look like to you


My System SpecsSystem Spec
.

25 Oct 2012   #12

Windows 7 Pro. 64/SP-1
 
 

Send you a P.M.
My System SpecsSystem Spec
25 Oct 2012   #13

Windows 7 Pro. 64/SP-1
 
 

It's fixed.
My System SpecsSystem Spec
.


26 Oct 2012   #14

Windows 7 Home Premium 32bit
 
 

Quote   Quote: Originally Posted by Jacee View Post
Make sure it's totally uninstalled Uninstalling MSE - Microsoft Community
tried it, still the same
My System SpecsSystem Spec
27 Oct 2012   #15

Windows 7 Pro. 64/SP-1
 
 

This is a option. Take a good read through this and see if it is what you want.
Repair Install
My System SpecsSystem Spec
27 Oct 2012   #16

Win 7 32 Home Premium, Win 7 64 Pro, Win 8.1 Pro
 
 

You could try running an SFC & see if that finds any problems

SFC /SCANNOW Command - System File Checker

Also, here is a MS Fix it tool for uninstalling MSE. You might want to try that & see if MSE installs after running this.

http://techdows.com/2010/11/microsof...-computer.html
My System SpecsSystem Spec
27 Oct 2012   #17

Windows 7 Pro. 64/SP-1
 
 

Okay top secret now would be a good time to make a list of what you have tried and what the out comes were. We are in the guessing stage until we have that information. You posted # 5 doesn't tell us what you tried.
Yes, I did. I have searched Microsoft web site, tried many solutions but did not work.
My System SpecsSystem Spec
27 Oct 2012   #18
Microsoft MVP

Windows 7 Ultimate 32bit SP1
 
 

I'm going to ask for two logs .... CKScanner and Security Check.
***NOTE: Run both of these apps as 'Administrator' by right clicking and choose to run as Administrator from the dropdown menu.

Download CKScanner by askey127 from HERE
Important - Save it to your desktop.
Doubleclick CKScanner.exe and click Search For Files.
After a very short time, when the cursor hourglass disappears, click Save List To File.
A message box will verify the file saved.
Double-click the CKFiles.txt icon on your desktop and copy/paste the contents in your next reply.

and

Download Security Check by screen317 from here http://screen317.spywareinfoforum.org/SecurityCheck.exe or here http://screen317.spywareinfoforum.org/
Save it to your Desktop.
Double click SecurityCheck.exe and follow the onscreen instructions inside of the black box.
A Notepad document should open automatically called checkup.txt.
Please post the contents of that document.
My System SpecsSystem Spec
01 Nov 2012   #19

Windows 7 Pro 64 Bit
 
 
Delete Key in Registry

For Seven :
Remove registry key :
HKEY_CLASSES_ROOT > Installer > UpgradeCodes >26D13F39948E1D546B0106B5539504D9
For Windows XP :
HKEY_CLASSES_ROOT > Installer > UpgradeCodes > 1F69ACF0D1CF2B7418F292F0E05EC20B
And Install it !
My System SpecsSystem Spec
08 Jan 2013   #20

Windows 7 64 Bit
 
 
Security Essentials install !!SOLVED!!

Quote   Quote: Originally Posted by GuillaumeGabard View Post
For Seven :
Remove registry key :
HKEY_CLASSES_ROOT > Installer > UpgradeCodes >26D13F39948E1D546B0106B5539504D9
For Windows XP :
HKEY_CLASSES_ROOT > Installer > UpgradeCodes > 1F69ACF0D1CF2B7418F292F0E05EC20B
And Install it !
Cheers Gabard... although the Registry Keys were the other way around for me, I found the 26D13F..etc on the XP machine, deleting this allowed me to install so kudos.
My System SpecsSystem Spec
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 Cannot Install Microsoft Security Essential, error 0x80070645




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