Windows 7

Yes. The Dell website states that the OS for the new Inspiron range is:

• Genuine Windows® 7 Home Premium, 64Bit.

Nothing is missing you just need to reinstall windows completely again.

Follow these steps while installing windows.

• Just connect the CD Drive and a hard disk in which you want to install windows.
• Turn on computer and Insert CD in CD Drive.Computer will automatically detect boot from CD.
• If the boot is not selected then select Boot from CD.
• Install windows using installation wizard.
• Turn off Computer and then connect all drives in correct ports (SATA ports).
• Turn on Computer and press F2 at the First page displayed for bios option.
• Change the boot order of drives such that the first drive is the drive in which Windows is installed.
• Save changes and exit Bios.
• Then the computer will turn on.

You can just copy and paste these ones

α в ¢ ∂ є f g н ι נ к ℓ м и σ ρ q я ѕ т υ ν ω χ у z

α в с ḋ ε ƒ ģ h ï ј ќ l ṃ ṉ ø ρ σ ɾ ṡ τ υ ṿ ώ χ ÿ ʐ

α в c d є f g h í j k l m n σ p q r s t u v w х ч z

ค ๒ ς ๔ є Ŧ ﻮ ђ เ ן к l ๓ ภ ๏ ק ợ г ร t ย ש ฬ ץ א z

Ă β Č Ď Ĕ Ŧ Ğ Ĥ Ĩ Ĵ Ķ Ĺ М Ń Ő Р ﾓ б ｻ ⅰ ﾉ к ﾚ ㎡ и ◊ ㄕ q Я ㄅ ₮ ㄩ √ ῳ � ㄚ z (might be a bit too crazy)

z ʎ x ʍ ʌ n ʇ s ɹ b d o u ɯ Ⴈ ʞ ɾ ! Ⴁ ƃ ɟ ә p ɔ q ɐ

ª Ā ā Ă ă Ą ą Ǎ ǎ Ǻ ǻ Α Δ Λ ά α λ Ά а ۸ ก ถ ภ ฤ ล ส อ ฮ Ạ

( C )

¢ © Ć ć ₡ Ĉ ĉ Ċ ċ Č č ς ζ С с ๔ ๕ € Ç ç

( D )

Ď Ḋ ḋ Ḍ ḍ Ḏ ḏ Ḑ ḑ Ḓ ḓ ď Đ đ δ ₫

( E )

Ē ē Ĕ ĕ Ė ė Ę ę Ě € ě Έ Ε Ξ Σ έ ε ξ Ё Є З е з э ё є ع غ ٤ Ẹ ẹ Ẻ ẻ Ẽ ẽ Ế ế Ề ề Ể ể Ễ ễ Ệ ệ È É Ê è é ê

( F )

₣ Ḟ ḟ ƒ

( G )

Ĝ ĝ Ğ ğ Ġ ġ Ģ ģ

( H )

Ĥ ĥ Ħ ħ Ή Η Ч н ч ђ ћ њ

( I )

¡ ¹ Ĩ ĩ Ī ī Ĭ ĭ Į į İ ı Ί ΐ Ι Ϊ ί ι ϊ ї เ Ỉ ỉ Ị ị

( J )

Ĵ ĵ Ј ј

( K )

Ķ ķ ĸ Κ κ Ќ К к ќ Қ қ Ҝ ҝ

( L )

£ ¦ Ĺ ĺ Ļ ļ Ľ ľ Ŀ ŀ Ł ł ℓ ๘ ๔ ๕

( M )

M ₥ Ḿ ḿ Ṁ ṁ Ṃ ṃ ๓ ๗ м

( N )

Ń ń Ņ ņ Ň ň ʼn Ŋ ŋ Ν ή η π И ₦ ห Й и й п א

( O )

º ¤ Ō ō Ŏ ŏ Ő ő Ơ ơ Ǒ ǒ Ǿ ǿ Ό Θ Ф Φ φ ф θ o O σ ό ס ם ۵ ٥ ه ๏ ๐ ๑ Ọ ọ Ỏ ỏ Ố ố Ồ ồ Ổ ổ Ỗ ỗ Ộ ộ Ớ ớ Ờ ờ Ở ở Ỡ ỡ Ợ ợ

( P )

P Ṕ ṕ Ṗ ṗ p ρ ק

( R )

Ŕ ŕ Ŗ ŗ Ř ř Г ṙ Ṛ ṛ Ṝ ṝ Ṟ ṟ Я г я ѓ

( S )

§ Ś ś Ŝ ŝ Ṡ ṡ Ṣ ṣ Ṥ Ṧ ṥ ṧ Ṩ ṩ Ş ş ѕ $ S

( T )

Ţ ţ Ṫ ṫ Ṭ ṭ ṯ Ṱ ṱ ẗ Ť ť Ŧ ŧ т τ

( U )

ų µ Ũ ũ Ū ū Ŭ ŭ Ů ů Ű ű Ų ų Ư ư Ǔ ǔ Ǖ ǖ Ǘ ǘ Ǚ ǚ Ǜ ǜ μ Џ Ц ц џ ข ฃ ช ซ ฌ ญ น บ ป ม ย ษ ห Ụ ụ Ủ ủ Ứ ứ Ừ ừ Ử ử Ữ ữ Ự ự υ

( V )

ΰ ν Ṽ ṽ Ṿ ṿ υ ϋ ύ ט ۷ √

( W )

Ŵ ŵ ω ώ Ш Щ ш щ ש ผ ฝ พ ฟ ฬ Ẁ ẁ Ẃ ₩ ẃ Ẅ ẅ ￦

( X )

χ Ẋ ẋ Ẍ ẍ Ж ж

( Y )

¥ γ Ŷ ŷ Ύ Ψ Ϋ ψ Ў Ч ч ў ע ץ צ Ỳ ỳ Ỵ ỵ Ỷ ỷ Ỹ ỹ

( Z )

Ź ź Ẑ ẑ Ẓ ẓ Ẕ ẕ Ż ż Ž

Special Characters

இ ௲ ூ ஃ ஊ ஏ ஒ ஓ ஔ ஜ ஞ ௯ ௮ ி ஞ ஜ ↔ ↕ ◘ ◙ ﻬ ҳҲҳ ± Ψ۝ ╦ ╩ § ▲ ♦ ¶ ∩ $ ¼ ½ ¾ x » « ╚ ╝ ♫ ♪ ♪ இ ௲ ூ ஃ ஊ ஏ ஐ ஒ ஓ ஔ ஜ ஞ ௯ ௮ ி ஞ ஜ ↔ ↕ ﻬ ҳҲҳ ± Ψ۝ ╦ ╩ § ▲ ♦ ¶ ∩ $ ¼ ½ ¾ x » « ♫ ♪ ♪ ஐ ღ ♥ ♠ ♣ の あ ｡ ° º ¤ • ㊈ ㊉ ㊊ ㊋ ㊌ ㊍ ㊎ ㊏ ㊐ ㊑ ㊒ ㊓ ㊔ ㊕ ㊖ ㊗ ㊀ ㊁ ㊂ ㊃ ㊄ ㊅ ㊆ ㊇ ╬ ♂ ♀ → ← ▪ ▄ █ ▌ © ® ░ ▒ ▒ ▓ ◊ の ω ∏ √ ∩ ¤ ∞ ≡ ◊ ╠ ═ ╝ ▫ □ » « εïз ± җ ۝ ௩ ௪ ௫ ௬ ௭ ௮ ௯ ௰ ௱ ௲ ४ ५ ६ ७ ८ ९॑ ॒ ॓ ॔ क़ ख़ ग़ ज़ ड़ ढ़ फ़ य़ ॠ ॡ ॢ ॣ । ॥ ० १ ा ि ी ु ू ृ ँ ं ः ॄ ॅ ॆ े ै ॉ ॊ ो ौ ् ़ ॐ २ ை ३ ஹ ஸ ௮ ன ப ம உ ஊ ௌ ொ இ لّـّـّّا ® © җ ๑ ಕ °¹²³ ◊ の Ψ № ∑ ξ ζ ≠ ─ = ≈ ≌ ۩ ๑ ۞ ō ε ┘ ┌ ╬ Θ ™ ۣ۞ ₪ ∂ ‡ ‼ ფ ბ გ დ ხ ჯ ჰ ჱ ე ป ผ ฝ พ ฟ ภ ม ย ร ฤ ล ฦ ว ศ ษ ส • ¬ ¨ ¯ · ± 俞 * ¸ ツ ❡ ❧ ҳ̸Ҳ̸ҳ ^ ⊙ ⊿ ⌒ ① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨ ⑩ ⑴ ⑵ ⑶ ⑷ ⑸ ⑹ ⑺ ⑻ ⑼ ⑾ ⑿ ⒀ ⒁ ⒂ ⒃ ⒄ ⒅ ⒆ ⒇ ⒈ ⒉ ⒊ ⒋ ⒌ ⒍ ⒎ ⒏ ⒐ ⒑ ⒒ ⒓ ⒔ ⒕ ⒖ ⒗ ⒘ ⒙ ⒚ ⒛ ▁ ▂ ▃ ▄ ▅ ▆ ▇ █ ▉ ▊ ▋ ▌ ▍ ▎ ▏ ▓ ▔ ⊹ ⊱ ⋛ ⋋ ⋌ ⋚ ⊰ ⊹◑ ﹏ √ ╮ ╭ ╯ ╰ ㋡ ↘ △ ◐ ☎ ☏▕ ■ □⊹『 ❀ ❣ ☇ ☃ 』 ♧ ⊹ ▲ △ ▼ ▽ ◆ ◇ ○ ◎ ● ◢ ◣ ◤ ◥ ★ ☆ ☉ ⺁ ⺄ ⺈ ⺋ ⺌ ⺧ ⺪ ⺮ ⺳ ⺷ ⺶ ⺻ ⻊ ⿰ ⿱ ⿲ ⿳ ⿴ ⿵ ⿶ ⿷ ⿸ ⿹ ⿺ 、 。 〃 々 〆 〇 「 」 『 』 〒 〓 〝 〞 〡 〢 〣 〤 〥 〦 ⊄ ⊅ ⊆ ⊇ ⊈ ⊊ ⊋ ⊌ ⊍ ⊎ ⊏ ⊐ ⊑ ⊒ ⊓ ⊔ ⊕ ⊖ ⊗ ⊘ ⊚ ⊛ ⊜ ⊝ ⊞ ⊟ ⊠ ⊡ ⊢ ⊣ ⊤ ⊥ ⊦ ⊧ ⊨ ⊩ ⋒ ⋓ ⋔ ⋕ ⋖ ⋗ ⋘ ⋙ ⋚ ⋛ ⋜ ⋭ ⋫ ⋬ ⋪ ⋩ ⋨ ⋧ ⋣ ⋢ ⌂ ⌠ ⌡ ║ ╽ ╿ ☀ ☁ ☂ ☃ ☄ ★ ☆ ☇ ☈ ☉ ☊ ☋ ☌ ☍ ☎ ☐ ☑ ☒ ☓ ☚ ☛ ☜ ☝ ☟ ☠ ☡ ☢ ☣ ☤ ☧ ☪ ☫ ☬ ☭ ♃ ☮ ☯ ☰ ☱ ☲ ☳ ☴ ☵ ☶ ☷ ☸ ☹ ☺ ☻ ☼ ☽ ☾ ☿ ♀ ♁ ♂ ♃ ♄ ♅ ♆ ♇ ♈ ♉ ♊ ♋ ♌ ♍ ♎ ♏ ♐ ♑ ♒ ♓ ♔ ♕ ♖ ♗ ♘ ♙ ♚ ♛ ♜ ♝ ♞ ♟ ♠ ♡ ♢ ♣ ♤ ♥ ♦ ♧ ♨ ♩ ✁ ✂ ✃ ✄ ✆ ✇ ✈ ✉ ✌ ✍ ✎ ✏ ✐ ✑ ✒ ✓ ✔ ✕ ✖ ✗ ✘ ✙ ✚ ✛ ✜ ✣ ✤ ✥ ✦ ✩ ✪ ✬ ❀ ✿ ✾ ✽ ✼ ✻ ✺ ✹ ✸ ✷ ✶ ✵ ✴ ✳ ✲ ✱ ✰ ✯ ✮ ✭ ❁ ❂ ❃ ❄ ❅ ❆ ❇ ❈ ❉ ❊ ❋ ❍ ❏ ❐ ❑ ❒ ❖ ❛ ❜ ❝ ❞ ❡ ❢ ❣ ❤ ❥ ❦ ❧ ➳ ➴ ➵ ➶ ➷ ➸ ➹ ➺ ➻ ➼ ➽ ➾ ➙ ➚ ➘ ➟ ➠ ➣ ➢ ➤ ➥ ➦ ➧ ➨ Ѿ 〴 〷 〄 ┌ ┍ ┎ ┏ ┐ ┑ ┒ ┓ └ ┕ ┖ ┗ ┘ ┙ ┚ ┛ ├ ┝ ┞ ┟ ┠ ┢ ┣ ┤ ┥ ┦ ┧ ┨ ┩ ┪ ┫ ┬ ┭ ┮ ┯ ╃ ╂ ╁ ╀ ┿ ┾ ┽ ┼ ┻ ┺ ┹ ┸ ┷ ┶ ┵ ┴ ┳ ┲ ┱ ┰ ╄ ╅ ╆ ╇ ╈ ╈ ╉ ╊ ╋ ═ ║ ╒ ╓ ╔ ╕ ╖ ╗ ╘ ╙ ╚ ╛ ╬ ╫ ╪ ╩ ╨ ╧ ╦ ╥ ╤ ╣ ╢ ╡ ╠ ╟ ╞ ╝ ╜ ご ﹢ ﹡ ﹄ ﹃ ﹂ ﹁ ～ ˇ ι ± ÷ ⊥ ∷ ∑ ∏ ∫ ∪ ∩ ∥ ∧ ∨ ∠ ⌒ 　〕 〔 〩 〦 〧 〨 〥 〣 〤 〢 〡 〈 〉 ﹝ ﹞ ↑ ← → ↓ ↖ ↗ ↘ ↙ ƸӁƷ

Sorry For Making It So Long, Enjoy :)