How do I change my monitor profile to check whether it’s corrupted?

Windows XP

1. Exit Photoshop Lightroom.
2. Choose Start > Control Panel > Display.
3. Click the Settings tab.
4. Click the Advanced button.
5. Click the Color Management tab.
6. Click the “ADD…” button.
7. Choose a standard RGB color profile, (i.e. sRGB IEC61966 - 2.1. )
8. In the “Color profiles currently associated with this device” field, select the new profile you just picked.
9. Click the “Set As Default” button.
10. (Optional) Select the old profile.
11. (Optional) Click the Remove button.
12. Click the “OK” button.

Windows Vista

1. Exit Photoshop Lightroom.
2. Choose Start > Control Panel > Color Management.
3. In the “Profiles associated with this device” field, select the default monitor profile.
4. Click the Advanced tab.
5. Click the Remove button. or Change the Device Profile to a standard RGB color profile, such as sRGB IEC61966 - 2.1.

Mac OS X

1. Go to System Preferences > Display
2. Select the Color tab
3. Press the Calibrate… button and follow the instructions. Turn on the Expert Options and calibrate to gamma 2.2.