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I have a large hard drive, but over the course of time, I find that I now only have 5 GB of space. While manually looking through my hard drive, I noticed that the folder C:\ProgramData\Microsoft takes up 2.2 GB of space.

Is it possible to manually delete C:\ProgramData\Microsoft folder or at the very least reduce the size of this folder without breaking Microsoft programs?

If there are other ways to reduce the size of this folder, please detail the necessary steps to take.

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Unlikely...The files contained in that folder are there for a reason. It sounds like your space is being used by something else if 2.2GB is even worth asking about. –  Ramhound Jan 30 '13 at 16:58
    
You can move it to another drive using dir junctions if you're running out of space on your OS drive (see Moving Windows 7 ProgramData folder after installation), but some things will break. –  Karan Jan 30 '13 at 17:01
    
Why would you do that? It's obviously used by Windows, as it's created by Windows. –  TFM Jan 30 '13 at 17:37
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3 Answers

Is it possible to manually delete C:\ProgramData\Microsoft folder or at the very least reduce the size of this folder without breaking Microsoft programs?

No.

If there are other ways to reduce the size of this folder, please detail the necessary steps to take.

There is one possibility.

That is the default location for the windows search database, which can be several gigabytes on its own. If this happens to be indexing more information that you really need, then you could reduce the database size by excluding these options from the index.

To do that, you go the your Control Panel and search for 'Indexing options' it this should allow you see what is being currently indexed and you can modify the criteria.

You may also need to delete and rebuild the index which can be done from the advanced section. (It also allows you to change the location of the database, but I presume that isn't off any benefit to you)

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You cannot delete the Program Data folder. Instead look at other options. Some of them will be:

  1. Disable hibernation and delete the hidden hiberfil.sys
  2. Move the page file from C:\ drive to an alternate drive.
  3. Run CCleaner and see if helps clean up some stuff.
  4. See if you can uninstall some junk / obselete / now unwanted programs.
  5. Check for Memory.dmp file in C:\Windows. This is a BSOD file that may take up space.
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No, it isn’t. This folder contains files used by Windows and other applications.

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