How to rebuild the win7 thumbnail cache

  

1. Open the “Start Menu” in the Search All Programs and Files box and type “Disk Cleanup” and click Open Disk Cleanup. As shown below

2. Click OK to enter the Disk Cleanup Properties page. As shown below

3. Wait until the disk cleanup calculates how much space can be freed on win7(C). As shown below

4. Check the thumbnail to confirm the file to be deleted. As shown below

5. Confirm that you want to delete the file. As shown below

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