There is a possibility that SDK fails to update. This is a known issue since revision 8: http:\/\/code.google.com\/p\/android\/issues\/detail?id=11989 Normally, you will be informed by the Android SDK Manager Log: Downloading Android SDK Tools, revision 16 Installing Android SDK Tools, revision 16 [post_tools_install.bat] Updating SDK Manager.exe [post_tools_install.bat]\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0 file(s) copied. [post_tools_install.bat] Error: The process cannot access the file because it is being used by another process. [post_tools_install.bat] Updating AVD Manager.exe [post_tools_install.bat]\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1 file(s) copied. Installed Android SDK Tools, revision 16 \u00a0The solution is simple: Ensure that your Explorer is closed and not\/or not listing your SDK tools folder. It seems that explorer locks tools. Open a CMD window and go to your SDK tools folder. Run android.bat<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"ngg_post_thumbnail":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[626,4],"tags":[],"class_list":["post-4830","post","type-post","status-publish","format-standard","hentry","category-android","category-technology"],"aioseo_notices":[],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/pzkzw-1fU","jetpack_likes_enabled":true,"jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/xylem.aegean.gr\/~modestos\/mo.blog\/wp-json\/wp\/v2\/posts\/4830","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xylem.aegean.gr\/~modestos\/mo.blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xylem.aegean.gr\/~modestos\/mo.blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xylem.aegean.gr\/~modestos\/mo.blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xylem.aegean.gr\/~modestos\/mo.blog\/wp-json\/wp\/v2\/comments?post=4830"}],"version-history":[{"count":7,"href":"https:\/\/xylem.aegean.gr\/~modestos\/mo.blog\/wp-json\/wp\/v2\/posts\/4830\/revisions"}],"predecessor-version":[{"id":5475,"href":"https:\/\/xylem.aegean.gr\/~modestos\/mo.blog\/wp-json\/wp\/v2\/posts\/4830\/revisions\/5475"}],"wp:attachment":[{"href":"https:\/\/xylem.aegean.gr\/~modestos\/mo.blog\/wp-json\/wp\/v2\/media?parent=4830"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xylem.aegean.gr\/~modestos\/mo.blog\/wp-json\/wp\/v2\/categories?post=4830"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xylem.aegean.gr\/~modestos\/mo.blog\/wp-json\/wp\/v2\/tags?post=4830"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}