The 10 Best apps I will recommend at this point of time

1.Browser: Firefox with its extensions, and K-Meleon as a lighter one.

2.Avast Antivirus

3. Smart defrag - for continuous and automatic defrag.

4. Advanced system care: for system maintenance and Malware removal.

5. 7-zip - Compression utility.

6. Bullzip PDF printer - for conversion into PDF by printing.

7. Syncnotes - sticky notes

8. Dropbox : The best online sync app.

9. Digsby - Multichat messenger

10. Foxit- Best but light weight PDF reader