by Usman Asar.
Marshal, are you with BlueHost/HostMonster? as they usually have limit on file numbers you use within your hosting, StableHost have as well.
You can try uninstalling the plug-ins, but it wont effect file numbers as they may dissapear from Moodle itself, but will remain the part of installation package. as I remember since 1.9, file numbers remain the same (~15000), but lines of codes have dramatically reduced.
I believe HostMonster/BlueHost allow upto 200,000 files (with safe limit given as 50,000), I am sure if you tell them that you are testing one folder for temporary time, they sure will be able to assist.