My 10 Commandments on repairing and optimizing Windows
 

My 10 Commandments on repairing and optimizing Windows:

1 Don’t overdo optimizing, don’t expect too much from it and don’t trust single-click tools unless you are REALLY familiar with them. Glary is not a bad choice in this respect.

2 Leave the registry alone unless there are absolutely, 110% dead entries in there and you know which ones they are.

3 Leave satisfactorily working drivers alone, they’re notoriously tricky. If you choose to update a driver, the best places to get it/them from are, in order of preference: Your system's manufacturer; the Device's own manufacturer; and finally, Windows Update. And always observe Point #9.

4 Prevent apps from starting with the system unnecessarily, but leave system services alone, they consume truly negligible resources.

5 Never allow your hard drive to get more than 90% full. Other than performance issues, a completely full disk can result in some truly horrible corruptions whereby the disk won't even show as being accessible - or even formatted.

6 Cleaning of temporary files only creates temporary space, no absolute performance gains.

7 Memory optimizers are Snake Oil, but Process Lasso does actually trim memory USAGE.

8 Defragment your disks, by all means - but only sparingly, and never run a defragger on SSDs

9 Always make a backup before implementing changes.

10 The best optimizing and repair tool is your keyboard. Know what you’re doing.