To view and delete temp files, open the Start menu and type %temp% in the Search field (in Windows XP and prior, click the Run option in the Start menu and type %temp% in the Run field). Press Enter and a Temp folder should open. You can delete all files found in this folder, and if any files are in use, they can be skipped.
After restarting the computer, you should see at least some improvement in the performance of the computer, now that it does not have to load all those temp files
Step 1: If You Are Running Windows 95, Windows 98, Windows NT, Windows ME, Windows 2000, or Windows XP, Follow the Instructions Below to Search for and Delete Any .tmp File Found on Your Computer.
1. Click the Start button to open the Start menu
2.Click on the Find option, then click on Find Files or folders.
3. In the named box, type *.tmp to search for any files with a "tmp" file extension.
4. Verify that the Look in section of the search box is pointing to the C: drive and not document folders.
5. Click the Find Now button to start the search.
6. Delete all files that are found.
Step 2: Once the Above Steps Have Been Completed, It Is Also Recommended That You Ensure the Temporary Folder on the Hard Drive Is Empty by Following the Steps Below.
1. On the Windows Desktop, double-click the My Computer icon.
2. Double-click on the C: drive
3. Double-click on the Temp folder (if present) and verify that all files in this folder are deleted.
4. Close the window and re-open My Computer.
5. Double-click on the C: drive.
6. Double-click on the Windows folder.
7. Double-click on the Temp folder (if present) and verify that all files in this folder are deleted.
Step 3: If You Are Running MS-DOS or Windows 3.x, Follow the Instructions Below to Remove Any Temporary Files Currently on the Computer.
1. If you are currently in Windows, click File and choose the option to Exit Windows.
2. Once at the prompt, type the following:
cd\ del *.tmp
3. Delete all temporary files found in the root directory of the C drive.
4. Next, type the following:
cd\ cd temp
5. In the C:\TEMP> directory (if present), type del *.* to delete all files in the temp directory.
6. Once deleted or if the temp folder is not present, type the following:
cd\ cd Windows cd temp
7. In the C:\Windows\TEMP> directory (if present), type del *.* to delete all files in the directory.
Step 4: Speed
When you will delete all temporary files from computer. It will speed up computer
If you have any problem or question regarding this ask in the comment