When uninstalling Windowblinds, first the Aero skin and default Windows icons should be applied, and then Windowblinds should be uninstalled through Impulse.
The rest depends on whether you have icon packager or not.
If you do, simply reapply the icons you want. Make a registry backup.
Enter ‘regedit’ in Search box and Open Registry Editor; Navigate and delete the entry HKLM\Software\Microsoft\Windows\Current Version\Explorer\Shell Icons
Exit Registry Editor, Logoff and login to see the default system icons restored.
If this doesn't work, it might just be easiest to do do a system restore to a time before you uninstalled Windowblinds. Then do as I said in the first sentence.