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Windows 7: 2502, 2503 errors on Windows 7

23 Jun 2010   #1

Windows 7
2502, 2503 errors on Windows 7

Since upgrading to Windows7 I have been unable to update software; at each attempt, I receive first a 2503 then a 2502 error, without explanation.
-date and time are correct
-happens whether virus and firewall are on or off

-attempting to use the uninstaller program also fails.

This is clearly a common problem judging by the number of queries, but I have yet to see any coherent solutions posted.

fingers crossed!

My System SpecsSystem Spec
23 Jun 2010   #2

Windows 7 x64 pro/ Windows 7 x86 Pro/ XP SP3 x86

Try these methods.

Method 1
Unregister Windows Installer, and then reregister Windows Installer. To do this, follow these steps:

1. On the "Start" menu, click "Run.

2. In the "Open" box, type "msiexec /unreg", and then press ENTER.

3. On the "Start" menu, click "Run".

4. In the "Open" box, type "msiexec /regserver", and then press ENTER.

Method 2

Check permissions within the Installer folder. To do this, follow these steps.

1. Click on Start and in the Start Search bar > type in > c: /windows/installer.

2. Right click on c: /windows/installer at the top under programs and click properties.

3. Click on the security tab > Verify if System and Administrator account has Full access permissions.

4. The Everyone account should have read and execute permissions, List Folder Contents, and Read.

My System SpecsSystem Spec

 2502, 2503 errors on Windows 7

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