If I uninstall LR on one computer will it erase my catalog?

My computer has double files for LR 5 and the Upgrades.  THe program runs very slowly, even though I have 8 Gb of Ram, and 300 GB of HD space.   Importing raw files takes around 15 mins for less than 100 files, and developing anything takes up to a minute on a change.     I thought if I were to uninstall the program it would take the duplicated files off, and perhaps that would help.  Any help is appreciated.

If your hard disk is nearly full, then this will help.
If not, then you would be wasting your time, and we might want to look at other possible causes for slowness. You could start by provide basic hardware and software information about your computer -- what operating system, is the operating system 32bit or 64bit, what processor, what version of Lightroom, and how big are the photos in megapixels (not megabytes)
Uninstalling Lightroom does not erase your catalog or your photos.

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