After 15 minutes* have passed, my laptop won't run any
.exe to install applications. This is what shows up:
If I restart my laptop, it works fine (it gets installed)... until another 15 minutes* passed, then the exactly same error appears. I've tried changing the UAC permission but to no avail. This problems also happens to certain already-installed-softwares; e.g., I can't run any Source-based games (Left 4 Dead 2, Counter Strike, etc) after 15 minutes have passed.
Any help? :/
- fifteen minutes is just my estimation. I'm not sure how long it is actually.