Ábrelo con un editor hexadecimal que te muestra todos los sectores que hay de verdad en el disco, sector a sector.
te dejo imágenes no se como saber si tiene la capacidad real
esta es la imagen del pendrive abierto con el editor:
esta es la imagen que sale al pasarle la utilidad analizar disco que trae el editor hexadecimal:
y este es el log o informe de la utilidad analizar disco:
Análisis de Datos de "Unidad D:"
Hex Dec Chr No %
00 0 . 232414129 1.48%
01 1 . 123342845 0.78%
02 2 . 62212248 0.40%
03 3 . 58997176 0.38%
04 4 . 53813425 0.34%
05 5 . 53582613 0.34%
06 6 . 53823014 0.34%
07 7 . 53479415 0.34%
08 8 . 53815144 0.34%
09 9 . 53583600 0.34%
0A 10 . 53823628 0.34%
0B 11 . 53477706 0.34%
0C 12 . 53813002 0.34%
0D 13 . 53582326 0.34%
0E 14 . 53823481 0.34%
0F 15 . 53481328 0.34%
10 16 . 115187483 0.73%
11 17 . 115253775 0.73%
12 18 . 53863007 0.34%
13 19 . 53517404 0.34%
14 20 . 53853056 0.34%
15 21 . 53621894 0.34%
16 22 . 53863151 0.34%
17 23 . 53519108 0.34%
18 24 . 53854270 0.34%
19 25 . 53623499 0.34%
1A 26 . 53863635 0.34%
1B 27 . 53517168 0.34%
1C 28 . 53852857 0.34%
1D 29 . 53622217 0.34%
1E 30 . 53862864 0.34%
1F 31 . 53518740 0.34%
20 32 115224721 0.73%
21 33 ! 114993496 0.73%
22 34 " 53863301 0.34%
23 35 # 53517567 0.34%
24 36 $ 53852645 0.34%
25 37 % 53622014 0.34%
26 38 & 53864207 0.34%
27 39 ' 53518042 0.34%
28 40 ( 54114145 0.34%
29 41 ) 53623536 0.34%
2A 42 * 53864710 0.34%
2B 43 + 53515780 0.34%
2C 44 , 53853412 0.34%
2D 45 - 53621796 0.34%
2E 46 . 53865054 0.34%
2F 47 / 53516779 0.34%
30 48 0 115224501 0.73%
31 49 1 114993577 0.73%
32 50 2 53866103 0.34%
33 51 3 53514827 0.34%
34 52 4 53852848 0.34%
35 53 5 53622248 0.34%
36 54 6 53792519 0.34%
37 55 7 52956894 0.34%
38 56 8 53295671 0.34%
39 57 9 53063814 0.34%
3A 58 : 53306419 0.34%
3B 59 ; 52956042 0.34%
3C 60 < 53293530 0.34%
3D 61 = 53062673 0.34%
3E 62 > 53306550 0.34%
3F 63 ? 52956729 0.34%
40 64 @ 114665205 0.73%
41 65 A 114434897 0.73%
42 66 B 53306516 0.34%
43 67 C 52955243 0.34%
44 68 D 53293894 0.34%
45 69 E 53062532 0.34%
46 70 F 53305910 0.34%
47 71 G 52957151 0.34%
48 72 H 53258208 0.34%
49 73 I 53024059 0.34%
4A 74 J 53267194 0.34%
4B 75 K 52915386 0.34%
4C 76 L 53253527 0.34%
4D 77 M 53023449 0.34%
4E 78 N 53266192 0.34%
4F 79 O 52916917 0.34%
50 80 P 114625996 0.73%
51 81 Q 114394391 0.73%
52 82 R 53266443 0.34%
53 83 S 52916232 0.34%
54 84 T 53253585 0.34%
55 85 U 53022833 0.34%
56 86 V 53266845 0.34%
57 87 W 52916894 0.34%
58 88 X 53255233 0.34%
59 89 Y 53024676 0.34%
5A 90 Z 53266522 0.34%
5B 91 [ 52915557 0.34%
5C 92 \ 53254109 0.34%
5D 93 ] 53022593 0.34%
5E 94 ^ 53266319 0.34%
5F 95 _ 52917518 0.34%
60 96 ` 114625571 0.73%
61 97 a 114394490 0.73%
62 98 b 53267092 0.34%
63 99 c 52915540 0.34%
64 100 d 53253677 0.34%
65 101 e 53024091 0.34%
66 102 f 53265710 0.34%
67 103 g 52917027 0.34%
68 104 h 53255742 0.34%
69 105 i 53025310 0.34%
6A 106 j 53265183 0.34%
6B 107 k 52916225 0.34%
6C 108 l 53253576 0.34%
6D 109 m 53024916 0.34%
6E 110 n 53264840 0.34%
6F 111 o 52916778 0.34%
70 112 p 114625231 0.73%
71 113 q 114397449 0.73%
72 114 r 53263459 0.34%
73 115 s 52915498 0.34%
74 116 t 53253972 0.34%
75 117 u 53025029 0.34%
76 118 v 53263715 0.34%
77 119 w 52917255 0.34%
78 120 x 53254770 0.34%
79 121 y 53026452 0.34%
7A 122 z 53264064 0.34%
7B 123 { 52915166 0.34%
7C 124 | 53253382 0.34%
7D 125 } 53025653 0.34%
7E 126 ~ 53263553 0.34%
7F 127 52916441 0.34%
80 128 € 114625731 0.73%
81 129 114396631 0.73%
82 130 ‚ 53263697 0.34%
83 131 ƒ 52915894 0.34%
84 132 „ 53253404 0.34%
85 133 … 53025115 0.34%
86 134 † 53263970 0.34%
87 135 ‡ 52916459 0.34%
88 136 ˆ 53254814 0.34%
89 137 ‰ 53027018 0.34%
8A 138 Š 53263710 0.34%
8B 139 ‹ 52915186 0.34%
8C 140 Œ 53261371 0.34%
8D 141 53033939 0.34%
8E 142 Ž 53272502 0.34%
8F 143 52926133 0.34%
90 144 114633940 0.73%
91 145 ‘ 114405681 0.73%
92 146 ’ 53272915 0.34%
93 147 “ 52924501 0.34%
94 148 ” 53262353 0.34%
95 149 • 53034558 0.34%
96 150 – 53272462 0.34%
97 151 — 52925123 0.34%
98 152 ˜ 53264048 0.34%
99 153 ™ 53035239 0.34%
9A 154 š 53272308 0.34%
9B 155 › 52924455 0.34%
9C 156 œ 53261890 0.34%
9D 157 53033615 0.34%
9E 158 ž 53272853 0.34%
9F 159 Ÿ 52925352 0.34%
A0 160 114633841 0.73%
A1 161 ¡ 114405929 0.73%
A2 162 ¢ 53272283 0.34%
A3 163 £ 52923986 0.34%
A4 164 ¤ 53262931 0.34%
A5 165 ¥ 53033241 0.34%
A6 166 ¦ 53272140 0.34%
A7 167 § 52925928 0.34%
A8 168 ¨ 53228188 0.34%
A9 169 © 52965560 0.34%
AA 170 ª 53198308 0.34%
AB 171 « 52849911 0.34%
AC 172 ¬ 53189657 0.34%
AD 173 52958008 0.34%
AE 174 ® 53197990 0.34%
AF 175 ¯ 52850946 0.34%
B0 176 ° 114562404 0.73%
B1 177 ± 114328879 0.73%
B2 178 ² 53198030 0.34%
B3 179 ³ 52850217 0.34%
B4 180 ´ 53190427 0.34%
B5 181 µ 52956718 0.34%
B6 182 ¶ 53198398 0.34%
B7 183 · 52851269 0.34%
B8 184 ¸ 53191644 0.34%
B9 185 ¹ 52958636 0.34%
BA 186 º 53198025 0.34%
BB 187 » 52849801 0.34%
BC 188 ¼ 53190676 0.34%
BD 189 ½ 52956103 0.34%
BE 190 ¾ 53196890 0.34%
BF 191 ¿ 52850356 0.34%
C0 192 À 114561042 0.73%
C1 193 Á 114327486 0.73%
C2 194 53197240 0.34%
C3 195 Ã 52848880 0.34%
C4 196 Ä 53189138 0.34%
C5 197 Å 52956274 0.34%
C6 198 Æ 53196854 0.34%
C7 199 Ç 52850112 0.34%
C8 200 È 53191031 0.34%
C9 201 É 52957411 0.34%
CA 202 Ê 53197044 0.34%
CB 203 Ë 52848773 0.34%
CC 204 Ì 53189531 0.34%
CD 205 Í 52955829 0.34%
CE 206 Î 53197130 0.34%
CF 207 Ï 52850151 0.34%
D0 208 Ð 114561146 0.73%
D1 209 Ñ 114327798 0.73%
D2 210 Ò 53197048 0.34%
D3 211 Ó 52848577 0.34%
D4 212 Ô 53189856 0.34%
D5 213 Õ 52956001 0.34%
D6 214 Ö 53196895 0.34%
D7 215 × 52850118 0.34%
D8 216 Ø 53191106 0.34%
D9 217 Ù 52957312 0.34%
DA 218 Ú 53197261 0.34%
DB 219 Û 52848899 0.34%
DC 220 Ü 53189391 0.34%
DD 221 Ý 52956040 0.34%
DE 222 Þ 53196193 0.34%
DF 223 ß 52847759 0.34%
E0 224 à 114558967 0.73%
E1 225 á 114325666 0.73%
E2 226 â 53194851 0.34%
E3 227 ã 52847213 0.34%
E4 228 ä 53187231 0.34%
E5 229 å 52953877 0.34%
E6 230 æ 53195140 0.34%
E7 231 ç 52849472 0.34%
E8 232 è 53187518 0.34%
E9 233 é 52955510 0.34%
EA 234 ê 53195262 0.34%
EB 235 ë 52848213 0.34%
EC 236 ì 53186050 0.34%
ED 237 í 52953989 0.34%
EE 238 î 53194772 0.34%
EF 239 ï 52850648 0.34%
F0 240 ð 114556789 0.73%
F1 241 ñ 114325466 0.73%
F2 242 ò 53195263 0.34%
F3 243 ó 52849588 0.34%
F4 244 ô 53184573 0.34%
F5 245 õ 52953898 0.34%
F6 246 ö 53195167 0.34%
F7 247 ÷ 52850704 0.34%
F8 248 ø 53186451 0.34%
F9 249 ù 52955502 0.34%
FA 250 ú 53194813 0.34%
FB 251 û 52849529 0.34%
FC 252 ü 53185064 0.34%
FD 253 ý 52953803 0.34%
FE 254 þ 53194845 0.34%
FF 255 ÿ 52850924 0.34%