I'm working with an Acer 9920 Laptop, with win 7 u installed. Until quite recently everything worked well. But now I have problems. For instance I want to install some software by doubleclicking on the msi file I see in Windows Explorer. After entering Admin credentials I get a message that the file I'm just seeing in WE cannot be found.
Similarly, when I want to edit extended system properties, C:\Windows\system32\systempropertiesadvanced.exe cannot be found.
Something apparently related is that when I want to start Eclipse which is a Java app the system fails telling me that no client JVM at xxx can be found.
When I log in as an admin everything seems to work right.
Maybe I changed something inadvertently, but I have no idea what this could be.
Are there any suggestions?